[ ]:0.2=80:[ ]=2.5=[ ]:12=[ ]%请将正确答案填写在括号内.
雷锋完爆诗吧寓
[ 0.5]:0.2=80:[ 32]=2.5=[ 30]:12=[ 250]%
可不可以说一下解题过程！！我急需~
2.5*0.2=0.5
2.5*100%=250%
为您推荐：
其他类似问题
扫描下载二维码找规律填数字 8,0,-64,-250,（） 括号里应该填多少?
-6488=-1*(-2)^30=0*(-3)^3-64=1*(-4)^3-250=2*（-5)^3
为您推荐：
其他类似问题
-6488=-1*(-2)^30=0*(-3)^3-64=1*(-4)^3-250=2*（-5)^3
今年的元宵节，比以往元宵节都不太一样，因为随着经济的发展，人们逐渐富裕起来，灯也随之好看了起来。昨天晚上，我和爸爸妈妈到街上去看灯。虽然北方的天气寒冷无比，但寒冷挡不住人们的热情 刚到马路上，只见马路上人山人海，整条马路都已变成了“人行道“，一眼望去看不见人流的末尾。 我和爸爸妈妈也随着人流汇入了灯区��德胜街。只见那德胜街的大牌楼，五光十色，“千万”条金黄色闪光灯...
扫描下载二维码Document Detail
(±)-4,12,15,18,26-Penta-hydroxy-13,17-dioxahepta-cyclo-[14.10.0.0.0.0.0.0]hexa-cosa-1,3(14),6(11),7,9,15,19,21,23-nona-ene-5,25-dione monohydrate.
MedLine Citation:
PubMed-not-MEDLINE
Abstract/OtherAbstract:
The title compound, C(24)H(14)O(9)·H(2)O, displays a cup-shaped form. The water mol-ecule is disordered over two set of sites with an occupancy ratio of 0.78:0.22. The mol-ecule of the compound has four stereocenters and corresponds to the SSRR/RRSS diastereoisomer. In the mol-ecule, the maximum dihedral angle between the planar benzene rings is 80.40 (4)°. The H atoms of the hy-droxy groups are engaged in hydrogen bonding, forming infinite chains parallel to the a axis. These chains are inter-linked through water mol-ecules, resulting in the formation of a two-dimensional network parallel to the (001) plane. Futhermore C-H?O, C-H?π and slipped π-π inter-actions result in the formation of a three-dimensional network.
Khalid M Muhammad Y M Nawaz T Zahid S Ashfaq Mahmood Qureshi
Related Documents
- 1289794 -
Publication Detail:
Journal Article
Journal Detail:
Acta crystallographica. Section E, Structure reports online
ISO Abbreviation:
Acta Crystallogr Sect E Struct Rep Online
Publication Date:
Date Detail:
Created Date:
Completed Date:
Revised Date:
Medline Journal Info:
Nlm Unique ID:
Medline TA:
Acta Crystallogr Sect E Struct Rep Online
Other Details:
Languages:
Pagination:
Citation Subset:
Export Citation:
MeSH Terms
Descriptor/Qualifier:
Comments/Corrections
From MEDLINE(R)/PubMed(R), a database of the U.S. National Library of Medicine
Journal Information
Journal ID (nlm-ta): Acta Crystallogr Sect E Struct Rep Online
Journal ID (publisher-id): Acta Cryst. E
Publisher: International Union of Crystallography
Article Information
A full version of this article is available from Crystallography Journals Online.(C) Mahmood et al. 2011
open-access:
Received Day: 06 Month: 3 Year: 2011
Accepted Day: 14 Month: 3 Year: 2011
collection publication date: Day: 01 Month: 4 Year: 2011
Electronic publication date: Day: 19 Month: 3 Year: 2011
pmc-release publication date: Day: 19 Month: 3 Year: 2011
Volume: 67 Issue: Pt 4
First Page: o910 Last Page: o911
ID: 3099947
PubMed Id:
Publisher Id: dn2665
Coden: ACSEBH
Publisher Item Identifier: S9573
(±)-4,12,15,18,26-Penta-hydroxy-13,17-dioxahepta-cyclo-[14.10.0.03,14.04,12.06,11.018,26.019,24]hexa-cosa-1,3(14),6(11),7,9,15,19,21,23-nona-ene-5,25-dione monohydrate
Alternate Title:C24H14O9·H2O
Khalid Mahmood
Muhammad Yaqub
M. Nawaz Tahir*
Zahid Shafiq
Ashfaq Mahmood Qureshi
aDepartment of Chemistry, Bahauddin Zakariya University, Multan 60800, Pakistan
bDepartment of Physics, University of Sargodha, Sargodha, Pakistan
Correspondence: Correspondence e-mail: dmntahir_
Related literature
For background and related structures, see: Almog et al. (2009); Yaqub et al. (2010).[Chemical Structure ID: scheme1]
Experimental
Crystal data
C24H14O9·H2O
Mr = 464.37
Triclinic,
a = 8.2448 (4) ?
b = 11.1558 (7) ?
c = 12.2569 (7) ?
α = 64.571 (2)°
β = 78.126 (1)°
γ = 80.738 (2)°
V = 992.98 (10) ?3
Mo Kα radiation
μ = 0.12 mm-1
0.24 × 0.16 × 0.14 mm
Data collection
Bruker Kappa APEXII CCD diffractometer
Absorption correction: multi-scan (SADABS; Bruker, 2005) Tmin = 0.975, Tmax = 0.983
14323 measured reflections
3592 independent reflections
2717 reflections with I & 2σ(I)
Rint = 0.039
Refinement
R[F2 & 2σ(F2)] = 0.041
wR(F2) = 0.106
3592 reflections
312 parameters
H-atom parameters constrained
Δρmax = 0.29 e ?-3
Δρmin = -0.22 e ?-3
Data collection: APEX2 (Bruker, 2009); cell refinement: SAINT (Bruker, 2009); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEPIII (Burnett & Johnson, 1996), ORTEP-3 for Windows (Farrugia, 1997) and PLATON (Spek, 2009); software used to prepare material for publication: WinGX (Farrugia, 1999) and PLATON.
Supplementary Material
Crystal structure: contains datablocks global, I. DOI: 10./dn2665sup1.cif
Structure factors: contains datablocks I. DOI: 10./dn2665Isup2.hkl
Additional supplementary materials:
crystall 3D checkCIF report
fnu1Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: DN2665).
The authors would like to thank the Higher Education Commission (HEC), Pakistan, for financial assistance to KM under the National Research Program for Universities.
supplementary crystallographic
information
Experimental
The pyrogallol (0.10 g, 0.793 mmol) was added to the stirred solution of
ninhydrin (0.29 g, 1.586 mmol) in 15 ml of acetic acid at 323 K for 45 min and
kept at room temperature for five days in a closed vessel. White colorless
prisms for x-ray analysis of the title compound (I) were separated and
washed with acetic acid and Petrolium ether.
Yield: 0.29 g, 74% m.p. 548 K
Refinement
The high values of thermal parameters of the solvent water lead to the
disorder. The water molecule is disordered over two set of sites with
occupancy ratio of groups is 0.786 (5):0.214 (5). The disordered water molecules
were treated with equal thermal parameters. One of the H-atom shares both
disordered molecules.
All H atoms attached to C atoms and O atom of hydroxy groups were fixed
geometrically and treated as riding with C—H = 0.93 and O—H = 0.82 ?
with Uiso(H) = 1.2Ueq(C) or Uiso(H) = 1.5Ueq(O). H atoms of the
disordered water molecule were located in difference Fourier maps and included
in the subsequent refinement using restraints (O-H = 0.85 (1)? and H···H =
1.40 (2)?) with Uiso(H) = 1.5Ueq(O). In the last cycles of refinement
they were treated as riding on their parent O atom.
Crystal data
Data collection
Refinement
Special details
Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (?2)
Atomic displacement parameters (?2)
Geometric parameters (?, °)
Hydrogen-bond geometry (?, °)
Symmetry codes: (i) x+1, y, z; (ii) -x+1, -y+1, -z; (iii) -x+2, -y+1, -z; (iv) -x, -y+1, -z+1; (v) -x+1, -y+1, -z+1.
Table 2 Table 2 π-π stacking interactions (?,°)
Cg1, Cg2 and Cg3 are the centroids of the C1–C6, C10–C15 and C19–C24 rings,
respectively.
Symmetry codes: (v) 1-x, 1-y, 1-z; (vi) 1-x, 1-y, -z; (vii) -x, -y, 1-z
(a) Distan
(b) perpendicular distance of CgI on ring plan J;
(c) perpendicular distance of CgJ on ring plan I;
(d) slippage = vertical displacement between ring centroids.
References
Almog, J., Rozin, R., Klein, A., Shamuilov-Levinton, G. & Cohen, S. (2009). Tetrahedron, 65, .
Bruker (2005). SADABS Bruker AXS Inc., Madison, Wisconsin, USA.
Bruker (2009). APEX2 and SAINT Bruker AXS Inc., Madison, Wisconsin, USA.
Burnett, M. N. & Johnson, C. K. (1996). ORTEPIII Report ORNL-6895. Oak Ridge National Laboratory, Tennessee, USA.
Farrugia, L. J. (1997). J. Appl. Cryst.30, 565.
Farrugia, L. J. (1999). J. Appl. Cryst.32, 837–838.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122.
Spek, A. L. (2009). Acta Cryst. D65, 148–155.
Yaqub, M., Mahmood, K., Tahir, M. N., Shafiq, Z. & Rauf, A. (2010). Acta Cryst. E66, o1886.
[Figure ID: Fap1]
View of the title compound with the atom numbering scheme. The thermal ellipsoids are drawn at the 30% probability level. H-atoms are shown by small circles of arbitrary radii. For the sake of clarity, only the major component of the disordered water molecule is represented.
[Figure ID: Fap2]
Partial packing view showing the formation of chain parallel to the a axis. For clarity H atoms not involved in hydrogen bondings and disordered water molecule have been omitted. H bonds are represented as dashed line.
[TableWrap ID: d1e165]
C24H14O9·H2O
Mr = 464.37
F(000) = 480
Triclinic, P1
Dx = 1.553 Mg m-3
Hall symbol:
Mo Kα radiation, λ = 0.71073 ?
a = 8.2448 (4) ?
Cell parameters from 2717 reflections
b = 11.1558 (7) ?
θ = 2.1–25.3°
c = 12.2569 (7) ?
u = 0.12 mm-1
α = 64.571 (2)°
β = 78.126 (1)°
Prisms, white
γ = 80.738 (2)°
0.24 × 0.16 × 0.14 mm
V = 992.98 (10)
[TableWrap ID: d1e302]
Bruker Kappa APEXII CCD diffractometer
3592 independent reflections
Radiation source: fine-focus sealed tube
2717 reflections with I & 2σ(I)
Rint = 0.039
Detector resolution: 8.10 pixels mm-1
θmax = 25.3°, θmin = 2.1°
Absorption correction: multi-scan (SADABS; Bruker, 2005)
k = -13→13
Tmin = 0.975, Tmax = 0.983
l = -14→14
14323 measured reflections
[TableWrap ID: d1e422]
Refinement on F2
Primary atom site location: structure-invariant direct methods
Least-squares matrix: full
Secondary atom site location: difference Fourier map
R[F2 & 2σ(F2)] = 0.041
Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.106
H-atom parameters constrained
w = 1/[σ2(Fo2) + (0.0477P)2 + 0.3139P]
where P = (Fo2 + 2Fc2)/3
3592 reflections
(Δ/σ)max & 0.001
312 parameters
Δρmax = 0.29 e ?-3
0 restraints
Δρmin = -0.22 e ?-3
[TableWrap ID: d1e579]
Geometry. All esds (except the esd in the dihedral angle between two l.s. planes)
are estimated using the full covariance matrix.
The cell esds are taken
into account individually in the estimation of esds in distances, angles
correlations between esds in cell parameters are only
used when they are defined by crystal symmetry.
An approximate (isotropic)
treatment of cell esds is used for estimating esds involving l.s. planes.
Refinement. Refinement of F2 against ALL reflections. The weighted R-factor
wR and goodness of fit S are based on F2, conventional
R-factors R are based on F, with F set to zero for
negative F2. The threshold expression of F2 &
σ(F2) is used only for calculating R-factors(gt) etc.
and is not relevant to the choice of reflections for refinement.
R-factors based on F2 are statistically about twice as large
as those based on F, and R- factors based on ALL data will be
even larger.
[TableWrap ID: d1e678]
0.74158 (16)
0.31117 (14)
0.13753 (13)
0.0325 (4)
0.44555 (15)
0.20020 (13)
0.18069 (12)
0.0275 (3)
0.23840 (18)
0.07962 (14)
0.18599 (13)
0.0345 (4)
0.06749 (16)
0.34145 (16)
0.10489 (12)
0.0340 (4)
-0.08231 (19)
0.34995 (16)
0.32765 (14)
0.0470 (4)
0.70474 (15)
0.58630 (14)
0.12331 (12)
0.0278 (3)
0.38306 (18)
0.82777 (14)
0.04490 (13)
0.0367 (4)
0.71372 (18)
0.81081 (15)
0.06590 (12)
0.0348 (4)
0.20667 (19)
0.75200 (17)
0.28466 (15)
0.0472 (4)
0.9905 (3)
0.8676 (3)
0.1058 (3)
0.1166 (15)
1.0286 (3)
0.8307 (3)
0.0423 (3)
0.1166 (15)
0.2922 (2)
0.3946 (2)
0.17679 (16)
0.0237 (4)
0.4482 (2)
0.32831 (19)
0.16793 (16)
0.0229 (4)
0.5959 (2)
0.38453 (19)
0.14809 (16)
0.0229 (4)
0.5743 (2)
0.5138 (2)
0.13981 (16)
0.0236 (4)
0.4192 (2)
0.58264 (19)
0.14865 (16)
0.0239 (4)
0.2742 (2)
0.5243 (2)
0.16695 (17)
0.0254 (4)
0.2716 (2)
0.1651 (2)
0.23039 (17)
0.0267 (5)
0.1629 (2)
0.3014 (2)
0.20018 (17)
0.0257 (4)
0.0451 (2)
0.2811 (2)
0.32021 (18)
0.0292 (5)
0.1173 (2)
0.1670 (2)
0.41783 (18)
0.0284 (5)
0.0688 (3)
0.1197 (2)
0.54396 (19)
0.0365 (5)
0.1552 (3)
0.0069 (2)
0.6172 (2)
0.0424 (6)
0.2853 (3)
-0.0581 (2)
0.5666 (2)
0.0415 (6)
0.3335 (3)
-0.0120 (2)
0.44149 (19)
0.0350 (5)
0.2470 (2)
0.1011 (2)
0.36760 (18)
0.0268 (5)
0.6316 (2)
0.7026 (2)
0.15031 (17)
0.0277 (5)
0.4423 (2)
0.7165 (2)
0.14245 (17)
0.0276 (5)
0.3551 (3)
0.7255 (2)
0.26280 (19)
0.0311 (5)
0.4801 (3)
0.6899 (2)
0.34347 (18)
0.0303 (5)
0.6377 (2)
0.6727 (2)
0.28187 (18)
0.0284 (5)
0.7748 (3)
0.6349 (2)
0.34150 (19)
0.0359 (5)
0.7509 (3)
0.6189 (2)
0.4618 (2)
0.0426 (6)
0.5942 (3)
0.6377 (2)
0.5225 (2)
0.0426 (6)
0.4564 (3)
0.6717 (2)
0.46534 (19)
0.0373 (5)
[TableWrap ID: d1e1365]
0.0166 (7)
0.0386 (9)
0.0433 (9)
-0.0027 (6)
-0.0024 (6)
-0.0186 (7)
0.0203 (7)
0.0296 (8)
0.0319 (8)
-0.0061 (6)
0.0026 (6)
-0.0135 (6)
0.0396 (9)
0.0396 (9)
0.0299 (8)
-0.0151 (7)
0.0011 (7)
-0.0181 (7)
0.0214 (8)
0.0528 (10)
0.0270 (8)
-0.0106 (7)
-0.0038 (6)
-0.0130 (7)
0.0327 (9)
0.0492 (10)
0.0442 (10)
0.0055 (8)
0.0066 (7)
-0.0139 (8)
0.0220 (7)
0.0351 (8)
0.0299 (7)
-0.0086 (6)
0.0005 (6)
-0.0165 (6)
0.0418 (9)
0.0335 (9)
0.0308 (8)
-0.0006 (7)
-0.0062 (7)
-0.0100 (7)
0.0383 (9)
0.0398 (9)
0.0264 (8)
-0.0185 (7)
-0.0032 (6)
-0.0093 (7)
0.0341 (10)
0.0651 (12)
0.0484 (10)
0.0044 (8)
-0.0016 (7)
-0.0338 (9)
-0.074 (2)
-0.0554 (19)
0.0243 (19)
-0.074 (2)
-0.0554 (19)
0.0243 (19)
0.0183 (10)
0.0325 (11)
0.0206 (10)
-0.0043 (8)
-0.0019 (7)
-0.0109 (9)
0.0233 (11)
0.0270 (11)
0.0178 (9)
-0.0056 (8)
-0.0005 (7)
-0.0086 (8)
0.0178 (10)
0.0309 (11)
0.0190 (9)
-0.0020 (8)
-0.0016 (7)
-0.0096 (8)
0.0214 (11)
0.0318 (11)
0.0186 (9)
-0.0094 (8)
-0.0002 (7)
-0.0101 (8)
0.0243 (11)
0.0285 (11)
0.0183 (9)
-0.0033 (8)
-0.0021 (7)
-0.0093 (8)
0.0181 (10)
0.0332 (12)
0.0242 (10)
-0.0003 (8)
-0.0025 (8)
-0.0119 (9)
0.0204 (11)
0.0331 (12)
0.0281 (11)
-0.0104 (8)
0.0020 (8)
-0.0137 (9)
0.0171 (10)
0.0362 (12)
0.0243 (10)
-0.0056 (8)
-0.0024 (8)
-0.0119 (9)
0.0224 (11)
0.0352 (12)
0.0318 (11)
-0.0085 (9)
0.0017 (8)
-0.0157 (10)
0.0247 (11)
0.0343 (12)
0.0281 (11)
-0.0103 (9)
0.0002 (8)
-0.0138 (9)
0.0360 (13)
0.0461 (14)
0.0293 (12)
-0.0126 (10)
0.0046 (9)
-0.0183 (11)
0.0475 (15)
0.0511 (15)
0.0250 (11)
-0.0179 (12)
-0.0023 (10)
-0.0089 (11)
0.0397 (14)
0.0397 (14)
0.0356 (13)
-0.0072 (11)
-0.0113 (10)
-0.0026 (11)
0.0300 (12)
0.0332 (12)
0.0378 (12)
-0.0044 (9)
-0.0036 (9)
-0.0109 (10)
0.0237 (11)
0.0306 (11)
0.0283 (11)
-0.0096 (9)
-0.0017 (8)
-0.0124 (9)
0.0290 (11)
0.0300 (11)
0.0250 (10)
-0.0093 (9)
0.0001 (8)
-0.0116 (9)
0.0273 (11)
0.0312 (11)
0.0244 (10)
-0.0035 (9)
-0.0040 (8)
-0.0111 (9)
0.0323 (13)
0.0288 (12)
0.0329 (12)
-0.0048 (9)
0.0014 (9)
-0.0153 (10)
0.0370 (13)
0.0271 (11)
0.0287 (11)
-0.0064 (9)
-0.0005 (9)
-0.0139 (9)
0.0343 (12)
0.0262 (11)
0.0265 (10)
-0.0077 (9)
-0.0028 (9)
-0.0116 (9)
0.0361 (13)
0.0406 (13)
0.0349 (12)
-0.0059 (10)
-0.0078 (10)
-0.0172 (10)
0.0551 (16)
0.0412 (14)
0.0367 (13)
-0.0050 (11)
-0.0176 (11)
-0.0159 (11)
0.0667 (17)
0.0392 (14)
0.0255 (11)
-0.0086 (12)
-0.0077 (11)
-0.0150 (10)
0.0502 (15)
0.0344 (13)
0.0287 (12)
-0.0090 (10)
0.0028 (10)
-0.0161 (10)
[TableWrap ID: d1e2118]
O10A—H10A
O10A—H10B
O10B—H10B
O10B—H10C
C3—O1—H1
C10—C11—H11
C2—O2—C7
106.21 (13)
C11—C12—C13
C7—O3—H3
C11—C12—H12
C8—O4—H4
C13—C12—H12
C4—O6—C16
106.53 (14)
C14—C13—C12
C17—O7—H7
C14—C13—H13
C16—O8—H8
C12—C13—H13
H10A—O10A—H10B
C13—C14—C15
H10B—O10B—H10C
C13—C14—H14
C2—C1—C6
120.97 (17)
C15—C14—H14
C2—C1—C8
108.59 (17)
C14—C15—C10
120.92 (19)
C6—C1—C8
130.42 (17)
C14—C15—C7
127.30 (18)
O2—C2—C1
114.10 (16)
C10—C15—C7
111.75 (18)
O2—C2—C3
122.06 (17)
O8—C16—O6
107.42 (15)
C1—C2—C3
123.84 (18)
O8—C16—C20
114.67 (16)
O1—C3—C4
127.48 (17)
O6—C16—C20
110.07 (16)
O1—C3—C2
118.53 (17)
O8—C16—C17
113.52 (16)
C4—C3—C2
113.99 (17)
O6—C16—C17
106.15 (14)
O6—C4—C3
123.20 (17)
C20—C16—C17
104.69 (15)
O6—C4—C5
113.39 (17)
O7—C17—C5
115.96 (16)
C3—C4—C5
123.41 (17)
O7—C17—C18
108.19 (16)
C6—C5—C4
121.19 (19)
C5—C17—C18
108.73 (15)
C6—C5—C17
129.73 (18)
O7—C17—C16
117.31 (16)
C4—C5—C17
108.98 (16)
C5—C17—C16
101.66 (15)
C5—C6—C1
116.59 (18)
C18—C17—C16
104.13 (15)
C5—C6—H6
O9—C18—C19
128.14 (19)
C1—C6—H6
O9—C18—C17
123.76 (19)
O3—C7—O2
108.40 (14)
C19—C18—C17
108.01 (17)
O3—C7—C15
110.20 (16)
C20—C19—C24
O2—C7—C15
110.56 (15)
C20—C19—C18
110.23 (18)
O3—C7—C8
118.18 (16)
C24—C19—C18
128.50 (19)
O2—C7—C8
105.64 (14)
C21—C20—C19
120.31 (19)
C15—C7—C8
103.66 (15)
C21—C20—C16
128.44 (18)
O4—C8—C1
114.40 (16)
C19—C20—C16
111.24 (18)
O4—C8—C9
108.96 (15)
C22—C21—C20
C1—C8—C9
111.02 (15)
C22—C21—H21
O4—C8—C7
116.81 (16)
C20—C21—H21
C1—C8—C7
101.22 (14)
C21—C22—C23
C9—C8—C7
103.80 (15)
C21—C22—H22
O5—C9—C10
128.69 (18)
C23—C22—H22
O5—C9—C8
124.02 (19)
C24—C23—C22
C10—C9—C8
107.30 (17)
C24—C23—H23
C15—C10—C11
C22—C23—H23
C15—C10—C9
109.91 (17)
C23—C24—C19
C11—C10—C9
129.16 (19)
C23—C24—H24
C12—C11—C10
C19—C24—H24
C12—C11—H11
C7—O2—C2—C1
C13—C14—C15—C10
C7—O2—C2—C3
166.22 (16)
C13—C14—C15—C7
-176.90 (19)
C6—C1—C2—O2
179.41 (16)
C11—C10—C15—C14
C8—C1—C2—O2
C9—C10—C15—C14
-178.79 (17)
C6—C1—C2—C3
C11—C10—C15—C7
176.95 (17)
C8—C1—C2—C3
-179.17 (17)
C9—C10—C15—C7
O2—C2—C3—O1
O3—C7—C15—C14
C1—C2—C3—O1
-178.11 (16)
O2—C7—C15—C14
O2—C2—C3—C4
-178.83 (16)
C8—C7—C15—C14
-170.02 (19)
C1—C2—C3—C4
O3—C7—C15—C10
-115.25 (18)
C16—O6—C4—C3
-166.01 (17)
O2—C7—C15—C10
124.93 (17)
C16—O6—C4—C5
C8—C7—C15—C10
O1—C3—C4—O6
C4—O6—C16—O8
-140.03 (15)
C2—C3—C4—O6
178.36 (16)
C4—O6—C16—C20
94.49 (17)
O1—C3—C4—C5
178.20 (17)
C4—O6—C16—C17
-18.27 (18)
C2—C3—C4—C5
C6—C5—C17—O7
O6—C4—C5—C6
-179.17 (16)
C4—C5—C17—O7
119.56 (18)
C3—C4—C5—C6
C6—C5—C17—C18
O6—C4—C5—C17
C4—C5—C17—C18
-118.33 (17)
C3—C4—C5—C17
176.96 (17)
C6—C5—C17—C16
167.58 (19)
C4—C5—C6—C1
C4—C5—C17—C16
-8.87 (19)
C17—C5—C6—C1
-175.59 (18)
O8—C16—C17—O7
C2—C1—C6—C5
O6—C16—C17—O7
-111.32 (18)
C8—C1—C6—C5
178.02 (18)
C20—C16—C17—O7
132.24 (17)
C2—O2—C7—O3
147.83 (15)
O8—C16—C17—C5
134.01 (16)
C2—O2—C7—C15
-91.28 (18)
O6—C16—C17—C5
16.24 (17)
C2—O2—C7—C8
20.25 (17)
C20—C16—C17—C5
-100.20 (16)
C2—C1—C8—O4
-114.96 (18)
O8—C16—C17—C18
-113.04 (17)
C6—C1—C8—O4
O6—C16—C17—C18
129.19 (15)
C2—C1—C8—C9
121.23 (17)
C20—C16—C17—C18
12.75 (19)
C6—C1—C8—C9
O7—C17—C18—O9
C2—C1—C8—C7
11.54 (19)
C5—C17—C18—O9
C6—C1—C8—C7
-166.95 (19)
C16—C17—C18—O9
O3—C7—C8—O4
O7—C17—C18—C19
-137.08 (16)
O2—C7—C8—O4
105.87 (17)
C5—C17—C18—C19
96.20 (18)
C15—C7—C8—O4
-137.81 (16)
C16—C17—C18—C19
O3—C7—C8—C1
-140.47 (16)
O9—C18—C19—C20
-177.4 (2)
O2—C7—C8—C1
-19.02 (17)
C17—C18—C19—C20
C15—C7—C8—C1
97.30 (16)
O9—C18—C19—C24
O3—C7—C8—C9
104.36 (18)
C17—C18—C19—C24
-173.2 (2)
O2—C7—C8—C9
-134.19 (14)
C24—C19—C20—C21
C15—C7—C8—C9
-17.87 (18)
C18—C19—C20—C21
-178.18 (18)
O4—C8—C9—O5
C24—C19—C20—C16
-178.04 (18)
C1—C8—C9—O5
C18—C19—C20—C16
C7—C8—C9—O5
-162.1 (2)
O8—C16—C20—C21
O4—C8—C9—C10
143.22 (16)
O6—C16—C20—C21
C1—C8—C9—C10
-89.92 (19)
C17—C16—C20—C21
C7—C8—C9—C10
18.09 (19)
O8—C16—C20—C19
114.97 (19)
O5—C9—C10—C15
O6—C16—C20—C19
-123.79 (17)
C8—C9—C10—C15
C17—C16—C20—C19
O5—C9—C10—C11
C19—C20—C21—C22
C8—C9—C10—C11
C16—C20—C21—C22
C15—C10—C11—C12
C20—C21—C22—C23
C9—C10—C11—C12
C21—C22—C23—C24
C10—C11—C12—C13
C22—C23—C24—C19
C11—C12—C13—C14
C20—C19—C24—C23
C12—C13—C14—C15
C18—C19—C24—C23
[TableWrap ID: d1e3461]
D—H···A
D—H···A
O1—H1···O4i
2.6885 (18)
O3—H3···O8ii
2.7559 (19)
O4—H4···O6ii
2.8964 (18)
O7—H7···O2ii
2.9548 (19)
O8—H8···O10A
O8—H8···O10B
O10A—H10A···O9i
O10B—H10C···O1iii
C11—H11···O9iv
C23—H23···Cg1v
[TableWrap ID: d1e3704]
CgI···CgJa
CgI···P(J)b
CgJ···P(I)c
3.5314 (11)
3.6525 (14)
3.7905 (14)
Article Categories:Organic Papers
Previous Document:&
Next Document:&（8分）某研究性学习小组通过资料查找发现：在15℃至35℃温度范围内，酵母菌种群数量增长较快。为了探究酵母菌种群增长的最适温度是多少，他们设置了5组实验，每隔24h取样检测一次，连续观察7天。下表是他们进行相关探究实验所得到的结果(单位：×106个/mL)。温度第1次第2次第3次第4次第5次第6次第7次 第8次0h24h48h72h96h120h144h168h15℃1.23.03.84.64.03.22.82.520℃1.25.05.34.22.11.20.80.625℃1.25.25.64.62.91.00.60.230℃1.24.95.54.82.21.30.70.535℃1.21.51.82.02.21.30.80.6请据表分析回答下列问题：（1）实验过程中，每隔24小时取一定量的酵母菌培养液，用血球计数板在显微镜下进行细胞计数，并以多次计数的平均值估算试管中酵母菌种群密度，这种方法称为法。(2) 据表分析，酵母菌种群数量增长的最适温度约是℃。在上述实验条件下，不同温度下酵母菌种群数量随时间变化的相同规律是。（3）请在答题卡相应位置的坐标中，画出上述实验过程中不同温度条件下培养液中酵母菌种群数量达到K值时的柱形图。（4）为了使实验数据更加准确，需要严格控制实验中的等无关变量。同一温度条件下，若提高培养液中酵母菌起始种群数量，则该组别中酵母菌到达K值的时间将（选填“增加”、 “减少”或 “保持不变”）；若其他条件保持不变，适当提高培养液的浓度，则该组别的K值将（选填“增加”、 “减小”或 “保持不变”）。 - 跟谁学
在线咨询您好，告诉我您想学什么，15分钟为您匹配优质老师哦马上咨询
搜索你想学的科目、老师试试搜索吉安
在线咨询您好，告诉我您想学什么，15分钟为您匹配优质老师哦马上咨询& > && >&& >&（8分）某研究性学习小组通过资料查找发现：在15℃至35℃温度范围内，酵母菌种群数量增长较快。为了探究酵母菌种群增长的最适温度是多少，他们设置了5组实验，每隔24h取样检测一次，连续观察7天。下表是他们进行相关探究实验所得到的结果(单位：×106个/mL)。温度第1次第2次第3次第4次第5次第6次第7次 第8次0h24h48h72h96h120h144h168h15℃1.23.03.84.64.03.22.82.520℃1.25.05.34.22.11.20.80.625℃1.25.25.64.62.91.00.60.230℃1.24.95.54.82.21.30.70.535℃1.21.51.82.02.21.30.80.6请据表分析回答下列问题：（1）实验过程中，每隔24小时取一定量的酵母菌培养液，用血球计数板在显微镜下进行细胞计数，并以多次计数的平均值估算试管中酵母菌种群密度，这种方法称为法。(2) 据表分析，酵母菌种群数量增长的最适温度约是℃。在上述实验条件下，不同温度下酵母菌种群数量随时间变化的相同规律是。（3）请在答题卡相应位置的坐标中，画出上述实验过程中不同温度条件下培养液中酵母菌种群数量达到K值时的柱形图。（4）为了使实验数据更加准确，需要严格控制实验中的等无关变量。同一温度条件下，若提高培养液中酵母菌起始种群数量，则该组别中酵母菌到达K值的时间将（选填“增加”、 “减少”或 “保持不变”）；若其他条件保持不变，适当提高培养液的浓度，则该组别的K值将（选填“增加”、 “减小”或 “保持不变”）。（8分）某研究性学习小组通过资料查找发现：在15℃至35℃温度范围内，酵母菌种群数量增长较快。为了探究酵母菌种群增长的最适温度是多少，他们设置了5组实验，每隔24h取样检测一次，连续观察7天。下表是他们进行相关探究实验所得到的结果(单位：×106个/mL)。温度第1次第2次第3次第4次第5次第6次第7次 第8次0h&24h&48h72h96h120h144h168h15℃1.23.03.84.64.03.22.82.520℃1.25.05.34.22.11.20.80.625℃1.25.25.64.62.91.00.60.230℃1.24.95.54.82.21.30.70.535℃1.21.51.82.02.21.30.80.6请据表分析回答下列问题：（1）实验过程中，每隔24小时取一定量的酵母菌培养液，用血球计数板在显微镜下进行细胞计数，并以多次计数的平均值估算试管中酵母菌种群密度，这种方法称为&&&&&&&&&&&&&&&&&法。(2) 据表分析，酵母菌种群数量增长的最适温度约是&&&&&&&&&&&&&&&&℃。在上述实验条件下，不同温度下酵母菌种群数量随时间变化的相同规律是&&&&&&&&&&&。（3）请在答题卡相应位置的坐标中，画出上述实验过程中不同温度条件下培养液中酵母菌种群数量达到K值时的柱形图。（4）为了使实验数据更加准确，需要严格控制实验中的&&&&&&&&&&&&&等无关变量。同一温度条件下，若提高培养液中酵母菌起始种群数量，则该组别中酵母菌到达K值的时间将&&&&&&&&&&&&（选填“增加”、 “减少”或 “保持不变”）；若其他条件保持不变，适当提高培养液的浓度，则该组别的K值将&&&&&&&&&&（选填“增加”、 “减小”或 “保持不变”）。科目: 高中生物难易度:教材: 高中生物浙科版最佳答案（1）抽样检测（样方）（2） 25℃&在一定时间范围内，酵母菌的种群数量随培养时间而不断增长；达到最大值后，随时间的延长酵母菌的种群数量逐渐下降（或酵母菌的种群数量先增后降）（3）如图（柱形分布合理、数值大致正确即可）（4）培养液的营养物质种类和浓度、pH、溶氧量、接种量等（答出一点得1分，共2分）&&&减少&&&增加解析知识点: 高中生物综合库,生物与环境,种群和群落相关试题大家都在看推荐文章热门知识点
关注我们官方微信关于跟谁学服务支持帮助中心