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1.01的425次方是多少 68.397222。 1.01^425=68.2018245...
可以输入：2^99，别人就知道是2的99次方！
458次方小于0.010101
，大于等于458的任意整数次方都小于0.010101
给我个好评呀，谢谢！！
大家还关注1-2+3+4-5+6+7-8+8+9+10-11+12+...+97-98+99_百度知道当前位置： &
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5,7,13,15-Tetra-oxo-2,2,10,10-tetra-kis-(trifluoro-meth-yl)-4,8,12,16-tetra-oxa-1(1,4),3(1,4),6(1,2),9(1,4),11(1,4),14(1,2)-hexa-benzenahexa-deca-phane tetra-hydro-furan monosolvate.
MedLine Citation:
In-Data-Review
Abstract/OtherAbstract:
The title compound, C(46)H(24)F(12)O(8)·C(4)H(8)O, consists of a cyclic aryl ester dimer and a tetra-hydro-furan mol-ecule. In the structure of the cyclic dimer, one carbonyl group stretches above the cavity and the other below.
Qing-Zhong G Yi Du
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
United States
Other Details:
Languages:
Pagination:
Citation Subset:
Affiliation:
School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430073,
People's Republic of China.
Export Citation:
MeSH Terms
Descriptor/Qualifier:
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 (iso-abbrev): 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) Guo and Du 2012
open-access:
Received Day: 14 Month: 2 Year: 2012
Accepted Day: 14 Month: 3 Year: 2012
collection publication date: Day: 01 Month: 4 Year: 2012
Electronic publication date: Day: 21 Month: 3 Year: 2012
pmc-release publication date: Day: 21 Month: 3 Year: 2012
Volume: 68 Issue: Pt 4
First Page: o1126 Last Page: o1126
ID: 3344072
PubMed Id:
Publisher Id: zj2060
Coden: ACSEBH
Publisher Item Identifier: S1166
5,7,13,15-Tetra-oxo-2,2,10,10-tetra-kis-(trifluoro-meth-yl)-4,8,12,16-tetra-oxa-1(1,4),3(1,4),6(1,2),9(1,4),11(1,4),14(1,2)-hexa-benzenahexa-deca-phane tetra-hydro-furan monosolvate
Alternate Title:C46H24F12O8·C4H8O
Qing-Zhong Guo*
aSchool of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430073, People’s Republic of China
Correspondence: Correspondence e-mail:
Related literature
For related structures of the cyclic aryl ester dimer, cyclo-bis-[1,4-phenyl-ene(hexa-fluoro-isopropyl-idene)phthalate] tetra-hydro-furan monosolvent, see: Jiang et al. (1997b); Teasley et al. (1998); Qi et al. (1999); Guo et al. (2003). For the use of ring-opening polymerization (ROP) reactions of cyclic aryl oligomers in the preparation of high performance aromatic polymers, see: Brunelle (2008); Brunelle et al. (1990); Chan et al. (1995); Jiang et al. (1997a). For ideal bond angles, see: Coulter & Windle (1989);[Chemical Structure ID: scheme1]
Experimental
Crystal data
C46H24F12O8·C4H8O
Mr = 1004.76
Triclinic,
a = 9.3857 (17) ?
b = 11.2748 (17) ?
c = 12.615 (2) ?
α = 105.715 (14)°
β = 97.969 (14)°
γ = 103.167 (14)°
Mo Kα radiation
μ = 0.12 mm-1
0.43 × 0.33 × 0.30 mm
Data collection
Siemens P4 diffractometer
Absorption correction: ψ scan (XSCANS; Bruker, 2001) Tmin = 0.950, Tmax = 0.964
5660 measured reflections
4684 independent reflections
1916 reflections with I & 2σ(I)
Rint = 0.022
3 standard reflections every 197 reflections intensity decay: 2.2%
Refinement
R[F2 & 2σ(F2)] = 0.065
wR(F2) = 0.158
4684 reflections
344 parameters
H-atom parameters constrained
Δρmax = 0.32 e ?-3
Δρmin = -0.20 e ?-3
Data collection: XSCANS (Bruker, 2001); cell refinement: XSCANS; data reduction: XSCANS; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL.
Supplementary Material
Crystal structure: contains datablock(s) I, global. DOI: 10./zj2060sup1.cif
Structure factors: contains datablock(s) I. DOI: 10./zj2060Isup2.hkl
Additional supplementary materials:
crystall 3D checkCIF report
fnu1Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: ZJ2060).
This work was supported by grants from the National Natural Science Foundation of China (NSFC ) and the Natural Science Foundation of Hubei Province (No. 2009CDB355).
supplementary crystallographic
information
Experimental
The cyclization reaction was conducted in a 500 ml threeneck round-bottom flask
charged with 150 ml dichloromethane, 30 ml distilled water and 0.16 g
cetyltrimethylammonium bromide at room temperature. A solution of phthaloyl
dichloride (1.014 g, 5 mmol) in 50 ml dichloromethane and a solution of
disodium salt of 4,4'-(hexafluoroisopropylidene) diphenol (1.682 g, 5 mmol) in
50 ml distilled water were delivered into the mechanically stirred flask in
an equimolar fashion over an 8 h period. After the addition, the mixture was
stirred for another 2 h to ensure complete reaction. The organic phase was
separated by a separating funnel and extracted with distilled water three
times and then evaporated to dryness. The colorless cyclic dimer was obtained
by recrystallization from tetrahydrofuran (THF). The isolated yield of cyclic
dimer was 1.3 g (54.7% yield). Colorless block crystals suitable for X-ray
analysis were obtained by slow evaporation from a THF solution at room
temperature for about one week.
Refinement
The H atoms were placed in idealized positions and allowed to ride on the
relevant carbon atoms, with C—H = 0.93? and Uiso(H) =
1.0Ueq(C) except for in THF, where C—H = 0.97 ?.
Crystal data
Data collection
Refinement
Special details
Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (?2)
Atomic displacement parameters (?2)
Geometric parameters (?, ?)
Symmetry code: (i) -x+1, -y, -z-1.
References
Bruker (2001). XSCANS Bruker AXS Inc., Madison, Wisconsin, USA.
Brunelle, D. J. (2008). J. Polym. Sci. Part A, 46, .
Brunelle, D. J., Boden, E. P. & Shannon, T. G. (1990). J. Am. Chem. Soc.112, .
Chan, K. P., Wang, Y. & Hay, A. S. (1995). Macromolecules, 28, 653–655.
Coulter, P. & Windle, A. H. (1989). Macromolecules, 22, .
Guo, Q. Z., Wang, H. H. & Chen, T. L. (2003). Chin. J. Chem.21, 369–371.
Jiang, H. Y., Chen, T. L. & Xu, J. P. (1997a). Macromol. Rapid Commun18, 401–409.
Jiang, H. Y., Chen, T. L. & Xu, J. P. (1997b). Macromolecules, 30, .
Qi, Y. H., Chen, T. L., Jiang, H. Y. & Xu, J. P. (1999). Macromol. Chem. Phys.200, .
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122.
Teasley, M. F., Wu, D. Q. & Harlow, R. L. (1998). Macromolecules, 31, .
[Figure ID: Fap1]
[Crystal structure of the title compound with ellipsoids of non-hydrogen atoms drawn at the 30% probability level.]
[Figure ID: Fap2]
[The packing structure of the title complex. The C—O and C—F bonds are shown as red and yellowish-green thick bond mode for clarity.]
[TableWrap ID: d1e130]
C46H24F12O8·C4H8O
Mr = 1004.76
F(000) = 512
Triclinic, P1
Dx = 1.365 Mg m-3
a = 9.3857 (17) ?
Mo Kα radiation, λ = 0.71073 ?
b = 11.2748 (17) ?
Cell parameters from 23 reflections
c = 12.615 (2) ?
θ = 9.5–20.1°
α = 105.715 (14)°
u = 0.12 mm-1
β = 97.969 (14)°
γ = 103.167 (14)°
Block, colorless
0.43 × 0.33 × 0.30 mm
[TableWrap ID: d1e269]
Siemens P4 diffractometer
1916 reflections with I & 2σ(I)
Radiation source: fine-focus sealed tube
Rint = 0.022
Graphite monochromator
θmax = 26.0°, θmin = 4.0°
h = -1→11
Absorption correction: ψ scan (XSCANS; Bruker, 2001)
k = -13→13
Tmin = 0.950, Tmax = 0.964
l = -15→15
5660 measured reflections
3 standard reflections every 197 reflections
4684 independent reflections
intensity decay: 2.2%
[TableWrap ID: d1e391]
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)] = 0.065
Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.158
H-atom parameters constrained
w = 1/[σ2(Fo2) + (0.052P)2] where P = (Fo2 + 2Fc2)/3
4684 reflections
(Δ/σ)max = 0.001
344 parameters
Δρmax = 0.32 e ?-3
0 restraints
Δρmin = -0.20 e ?-3
[TableWrap ID: d1e545]
Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes)
are estimated using the full covariance matrix. The cell e.s.d.'s are taken
into account individually in the estimation of e.s.d.'s in distances, angles
correlations between e.s.d.'s in cell parameters are only
used when they are defined by crystal symmetry. An approximate (isotropic)
treatment of cell e.s.d.'s is used for estimating e.s.d.'s involving l.s.
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: d1e644]
-0.0470 (3)
-0.3086 (2)
-0.5363 (2)
0.0794 (8)
0.1569 (4)
-0.3494 (4)
-0.5872 (3)
0.1347 (15)
0.8188 (3)
0.3985 (2)
-0.1740 (2)
0.0715 (8)
0.7764 (4)
0.5631 (3)
-0.2264 (3)
0.1049 (11)
0.1508 (2)
0.2999 (2)
-0.0496 (2)
0.1018 (9)
-0.0143 (2)
0.1254 (2)
-0.1459 (2)
0.0908 (8)
0.1038 (3)
0.2448 (2)
-0.2304 (2)
0.0860 (7)
0.3519 (3)
0.2028 (2)
0.04653 (17)
0.1021 (9)
0.3492 (3)
0.0118 (3)
-0.0450 (2)
0.0933 (8)
0.1484 (3)
0.0505 (2)
-0.00260 (18)
0.0977 (8)
-0.0778 (4)
-0.4798 (3)
-0.7009 (3)
0.0589 (10)
-0.2286 (4)
-0.5213 (4)
-0.7051 (3)
0.0792 (12)
-0.3231 (4)
-0.6168 (4)
-0.7958 (3)
0.0827 (13)
-0.2656 (5)
-0.6701 (4)
-0.8850 (3)
0.0721 (11)
-0.1159 (5)
-0.6294 (4)
-0.8830 (3)
0.0706 (11)
-0.0203 (4)
-0.5338 (3)
-0.7899 (3)
0.0572 (9)
0.0240 (5)
-0.3755 (4)
-0.6024 (3)
0.0736 (11)
0.0367 (4)
-0.2045 (3)
-0.4396 (3)
0.0614 (10)
0.0224 (4)
-0.2157 (3)
-0.3377 (4)
0.0724 (11)
0.0913 (4)
-0.1106 (3)
-0.2421 (3)
0.0658 (10)
0.1709 (3)
0.0029 (3)
-0.2513 (3)
0.0498 (8)
0.1826 (4)
0.0095 (3)
-0.3588 (3)
0.0617 (10)
0.1140 (4)
-0.0932 (4)
-0.4529 (3)
0.0680 (10)
0.2397 (3)
0.1268 (3)
-0.1490 (3)
0.0520 (9)
0.1194 (4)
0.2006 (4)
-0.1444 (4)
0.0738 (12)
0.2704 (5)
0.0965 (5)
-0.0377 (3)
0.0737 (12)
0.3893 (4)
0.2048 (3)
-0.1606 (3)
0.0495 (8)
0.4309 (4)
0.3383 (3)
-0.1327 (3)
0.0635 (10)
0.5725 (4)
0.4043 (3)
-0.1380 (3)
0.0640 (10)
0.6714 (4)
0.3391 (3)
-0.1729 (3)
0.0545 (9)
0.6330 (4)
0.2069 (3)
-0.2027 (3)
0.0603 (10)
0.4938 (4)
0.1420 (3)
-0.1968 (3)
0.0633 (10)
0.8577 (5)
0.5007 (4)
-0.2080 (3)
0.0692 (11)
0.6163 (12)
-0.0885 (7)
-0.3822 (10)
0.5149 (18)
-0.1575 (12)
-0.4794 (11)
0.5431 (12)
-0.2781 (11)
-0.5174 (9)
0.5847 (17)
-0.3060 (8)
-0.4206 (11)
-0.1677 (12)
-0.3238 (8)
[TableWrap ID: d1e1601]
0.0608 (16)
0.0640 (16)
0.0805 (17)
0.0018 (14)
0.0152 (15)
-0.0173 (14)
0.0058 (19)
-0.052 (2)
0.0525 (16)
0.0579 (16)
-0.0004 (13)
0.0185 (14)
0.0299 (15)
0.0708 (15)
0.0862 (16)
0.1111 (19)
0.0068 (13)
0.0357 (14)
-0.0247 (14)
0.0465 (13)
0.0826 (15)
0.0043 (12)
0.0302 (13)
0.0097 (14)
0.0726 (15)
0.0738 (15)
0.1102 (19)
0.0284 (12)
0.0150 (14)
0.0219 (14)
0.0846 (17)
0.0530 (13)
-0.0261 (15)
0.0017 (12)
0.0078 (13)
0.0768 (17)
0.0878 (17)
0.0116 (15)
0.0018 (13)
0.0510 (16)
0.0713 (15)
0.0685 (14)
-0.0213 (14)
0.0194 (12)
0.0227 (14)
-0.0016 (18)
0.0121 (18)
0.0029 (17)
-0.002 (2)
-0.006 (2)
-0.020 (2)
-0.007 (2)
0.0006 (19)
0.0037 (18)
0.0144 (18)
0.0183 (19)
0.0018 (18)
0.0037 (19)
-0.0053 (19)
0.0122 (19)
0.0171 (19)
0.0417 (19)
0.0453 (19)
0.0035 (16)
0.0076 (16)
0.0046 (16)
-0.0016 (18)
0.0127 (19)
0.0071 (18)
0.0131 (19)
0.0086 (19)
0.0427 (19)
0.0087 (17)
0.0096 (16)
0.0051 (16)
-0.009 (2)
-0.003 (2)
0.0071 (16)
0.0143 (16)
0.0064 (16)
0.0101 (19)
0.0199 (19)
0.0003 (18)
0.0033 (19)
0.0071 (18)
0.0075 (18)
0.0108 (17)
0.0113 (18)
0.0100 (18)
0.0246 (19)
0.0163 (19)
0.0437 (19)
0.0058 (18)
0.0091 (18)
-0.018 (8)
-0.026 (6)
0.203 (14)
0.113 (10)
0.132 (10)
0.048 (10)
-0.041 (10)
-0.053 (6)
-0.033 (7)
0.216 (14)
0.168 (12)
0.043 (11)
0.123 (10)
0.059 (12)
-0.041 (9)
[TableWrap ID: d1e2261]
1.323 (12)
1.355 (12)
1.413 (14)
1.369 (13)
1.619 (14)
C7—O1—C8
F5—C16—F6
C23—O3—C20
F5—C16—F4
C6—C1—C2
F6—C16—F4
C6—C1—C7
F5—C16—C14
C2—C1—C7
F6—C16—C14
C3—C2—C1
F4—C16—C14
C3—C2—H2
C22—C17—C18
C1—C2—H2
C22—C17—C14
C4—C3—C2
C18—C17—C14
C4—C3—H3
C19—C18—C17
C2—C3—H3
C19—C18—H18
C3—C4—C5
C17—C18—H18
C3—C4—H4
C20—C19—C18
C5—C4—H4
C20—C19—H19
C4—C5—C6
C18—C19—H19
C4—C5—H5
C19—C20—C21
C6—C5—H5
C19—C20—O3
C1—C6—C5
C21—C20—O3
C1—C6—C23i
C22—C21—C20
C5—C6—C23i
C22—C21—H21
O2—C7—O1
C20—C21—H21
O2—C7—C1
C21—C22—C17
O1—C7—C1
C21—C22—H22
C9—C8—C13
C17—C22—H22
C9—C8—O1
O4—C23—O3
C13—C8—O1
O4—C23—C6i
C8—C9—C10
O3—C23—C6i
C8—C9—H9
C27—O5—C24
C10—C9—H9
O5—C24—C25
C11—C10—C9
O5—C24—H24A
C11—C10—H10
C25—C24—H24A
C9—C10—H10
O5—C24—H24B
C10—C11—C12
C25—C24—H24B
C10—C11—C14
H24A—C24—H24B
C12—C11—C14
C26—C25—C24
C13—C12—C11
C26—C25—H25A
C13—C12—H12
C24—C25—H25A
C11—C12—H12
C26—C25—H25B
C8—C13—C12
C24—C25—H25B
C8—C13—H13
H25A—C25—H25B
C12—C13—H13
C25—C26—C27
C17—C14—C16
C25—C26—H26A
C17—C14—C15
C27—C26—H26A
C16—C14—C15
C25—C26—H26B
C17—C14—C11
C27—C26—H26B
C16—C14—C11
H26A—C26—H26B
C15—C14—C11
O5—C27—C26
F3—C15—F2
O5—C27—H27A
F3—C15—F1
C26—C27—H27A
F2—C15—F1
O5—C27—H27B
F3—C15—C14
C26—C27—H27B
F2—C15—C14
H27A—C27—H27B
F1—C15—C14
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