metal-organic compounds
Hexaaqua(5,7-dihydroxy-4-oxo-2-phenyl-4H-chromene-8-sulfonato)calcium(II) 5,7-dihydroxy-4-oxo-2-phenyl-4H-chromene-8-sulfonate trihydrate
aSchool of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China, and bDepartment of Chemistry, Xianyang Normal University, Xianyang 712000, People's Republic of China
*Correspondence e-mail: liubin1958@126.com
In the title compound, [Ca(C15H9O7S)(H2O)6](C15H9O7S)·3H2O, the Ca centre has a distorted decahedral geometry, coordinated by six O atoms from water molecules and one sulfonate O atom. The is stabilized by aromatic π–π interactions, with centroid–centroid distances of 3.765 (5) and 3.896 (5) Å between the phenyl ring and the benzene ring of the chromene unit of neighbouring molecules. In addition, the stacked molecules exhibit inter- and intramolecular O—H⋯O hydrogen bonds, including the uncoordinated water molecules.
Related literature
For biological activity, see: Chan et al. (2000); Hiroyuki et al. (1996); Jiang et al. (2001); Lee et al. (1999); Shin et al. (1999); Zanoli et al. (2000). For related structures, see: Cote & Shimizu (2003); Li & Zhang (2008); Morin et al. (2000); Pusz et al. (2001); Zhang et al. (2004, 2006a,b).
Experimental
Crystal data
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Refinement
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Data collection: SMART (Bruker, 1999); cell SAINT-Plus (Bruker, 1999); data reduction: SAINT-Plus; 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.
Supporting information
10.1107/S1600536808037586/lx2072sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536808037586/lx2072Isup2.hkl
5,7-Dihydroxyflavone (chrysin, 1.0 g, 3.9 mmol) was added slowly to concentrated sulfuric acid (6 ml) with stirring. The reaction was maintained at room temperature for 12 h. Then, it was poured into NaCl saturated aqueous solution (50 ml) and a yellow precipitate appeared. After 5 h, the precipitate was filtered and washed with NaCl saturated aqueous solution until the pH value of the filtrate was 7. It was dissolved in water (50 ml), and mixed with saturated CaCl2 solution (10 ml). (I) was obtained after 24 h. It was recrystallized from an ethanol-water (1:1 v/v) solution. Colorless sheet-shaped crystals suitable for X-ray analysis were obtained by slow evaporation of the solvent for about 3 d at room temperature (yield 78%).
H atoms were positioned geometrically and refined as riding atoms, with C—H = 0.93 (aromatic) and O—H = 0.82 (phenolic) Å, Uiso(H) = 1.2Ueq(C) and Uiso(H) = 1.5Ueq(O). H atoms of the water molecules were found in difference maps and positionally refined with constraints of Uiso(H) = 1.5Ueq(O). The reasonable position of H atoms in O22 were not obtained because of short inter distance with O19.
Data collection: SMART (Bruker, 1999); cell
SAINT-Plus (Bruker, 1999); data reduction: SAINT-Plus (Bruker, 1999); 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 (Sheldrick, 2008).Fig. 1. The molecular structure of the title compound, showing displacement ellipsoids drawn at the 30% probability level. Hydrogen bonds are illustrated as dashed lines. | |
Fig. 2. π–π interactions (dotted lines) in the title compound. Cg denotes the ring centroid. [Symmetry codes: (i) x - 1, y - 1, z; (ii) x + 1, y + 1, z.] |
[Ca(C15H9O7S)(H2O)6](C15H9O7S)·3H2O | Z = 2 |
Mr = 868.79 | F(000) = 904 |
Triclinic, P1 | Dx = 1.594 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 11.360 (2) Å | Cell parameters from 2128 reflections |
b = 12.390 (1) Å | θ = 2.5–23.9° |
c = 13.975 (2) Å | µ = 0.38 mm−1 |
α = 95.136 (2)° | T = 296 K |
β = 102.167 (3)° | Sheet, colourless |
γ = 107.423 (2)° | 0.36 × 0.23 × 0.14 mm |
V = 1809.9 (4) Å3 |
Bruker SMART CCD area-detector diffractometer | 6299 independent reflections |
Radiation source: fine-focus sealed tube | 4416 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.026 |
Detector resolution: 10.0 pixels mm-1 | θmax = 25.1°, θmin = 1.5° |
ϕ and ω scans | h = −9→13 |
Absorption correction: multi-scan (SADABS; Bruker, 1999) | k = −14→14 |
Tmin = 0.874, Tmax = 0.947 | l = −16→16 |
9179 measured reflections |
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)] = 0.055 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.167 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.04 | w = 1/[σ2(Fo2) + (0.0956P)2] where P = (Fo2 + 2Fc2)/3 |
6299 reflections | (Δ/σ)max < 0.001 |
558 parameters | Δρmax = 0.40 e Å−3 |
16 restraints | Δρmin = −0.40 e Å−3 |
[Ca(C15H9O7S)(H2O)6](C15H9O7S)·3H2O | γ = 107.423 (2)° |
Mr = 868.79 | V = 1809.9 (4) Å3 |
Triclinic, P1 | Z = 2 |
a = 11.360 (2) Å | Mo Kα radiation |
b = 12.390 (1) Å | µ = 0.38 mm−1 |
c = 13.975 (2) Å | T = 296 K |
α = 95.136 (2)° | 0.36 × 0.23 × 0.14 mm |
β = 102.167 (3)° |
Bruker SMART CCD area-detector diffractometer | 6299 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 1999) | 4416 reflections with I > 2σ(I) |
Tmin = 0.874, Tmax = 0.947 | Rint = 0.026 |
9179 measured reflections |
R[F2 > 2σ(F2)] = 0.055 | 16 restraints |
wR(F2) = 0.167 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.04 | Δρmax = 0.40 e Å−3 |
6299 reflections | Δρmin = −0.40 e Å−3 |
558 parameters |
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 and torsion 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 > 2sigma(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. |
x | y | z | Uiso*/Ueq | ||
Ca1 | 0.10081 (6) | 0.62071 (6) | 0.23114 (5) | 0.0393 (2) | |
S2 | 0.33030 (8) | 0.65555 (7) | 0.07174 (7) | 0.0427 (3) | |
O1 | 0.46932 (19) | 0.90038 (18) | 0.11438 (16) | 0.0358 (5) | |
O2 | 0.8501 (2) | 1.0701 (2) | 0.17925 (19) | 0.0492 (6) | |
O3 | 0.8907 (2) | 0.8768 (2) | 0.1856 (2) | 0.0551 (7) | |
H3 | 0.9073 | 0.9455 | 0.1833 | 0.083* | |
O4 | 0.5425 (3) | 0.5415 (2) | 0.1183 (3) | 0.0636 (8) | |
H4 | 0.4644 | 0.5167 | 0.1030 | 0.095* | |
O5 | 0.3082 (3) | 0.5319 (2) | 0.0591 (2) | 0.0645 (8) | |
O6 | 0.2916 (2) | 0.6914 (2) | −0.02215 (19) | 0.0582 (7) | |
O7 | 0.2732 (2) | 0.6922 (2) | 0.14628 (19) | 0.0489 (6) | |
O8 | 0.3056 (3) | 0.6613 (3) | 0.3527 (2) | 0.0547 (7) | |
H8A | 0.289 (4) | 0.653 (4) | 0.4063 (18) | 0.080* | |
H8B | 0.332 (4) | 0.612 (3) | 0.331 (3) | 0.080* | |
O9 | 0.1102 (3) | 0.4520 (2) | 0.1496 (3) | 0.0698 (9) | |
H9A | 0.053 (3) | 0.390 (2) | 0.128 (3) | 0.080* | |
H9B | 0.170 (3) | 0.462 (4) | 0.124 (3) | 0.080* | |
O10 | 0.0505 (3) | 0.5170 (3) | 0.3609 (2) | 0.0716 (9) | |
H10A | 0.011 (4) | 0.4479 (12) | 0.345 (3) | 0.080* | |
H10B | 0.088 (4) | 0.534 (4) | 0.4197 (12) | 0.080* | |
O11 | −0.1277 (3) | 0.5121 (2) | 0.1799 (2) | 0.0533 (7) | |
H11B | −0.169 (4) | 0.487 (4) | 0.1221 (13) | 0.080* | |
H11A | −0.171 (4) | 0.473 (3) | 0.212 (3) | 0.080* | |
O12 | 0.0807 (3) | 0.7627 (2) | 0.3400 (2) | 0.0597 (8) | |
H12A | 0.039 (4) | 0.746 (4) | 0.381 (2) | 0.065 (15)* | |
H12B | 0.096 (4) | 0.8316 (11) | 0.343 (3) | 0.080* | |
O13 | 0.0262 (3) | 0.7350 (3) | 0.1202 (2) | 0.0633 (8) | |
H13B | −0.009 (4) | 0.780 (3) | 0.137 (3) | 0.080* | |
H13A | 0.036 (5) | 0.742 (4) | 0.0644 (16) | 0.080* | |
C1 | 0.4349 (3) | 1.1836 (3) | 0.1122 (3) | 0.0416 (8) | |
H1 | 0.5183 | 1.2318 | 0.1219 | 0.050* | |
C2 | 0.3361 (4) | 1.2284 (3) | 0.0989 (3) | 0.0489 (9) | |
H2 | 0.3534 | 1.3068 | 0.0996 | 0.059* | |
C3 | 0.2126 (4) | 1.1585 (3) | 0.0846 (3) | 0.0528 (10) | |
H3A | 0.1466 | 1.1894 | 0.0751 | 0.063* | |
C4 | 0.1863 (4) | 1.0421 (3) | 0.0843 (3) | 0.0533 (10) | |
H4A | 0.1026 | 0.9949 | 0.0752 | 0.064* | |
C5 | 0.2837 (3) | 0.9957 (3) | 0.0974 (3) | 0.0438 (9) | |
H5 | 0.2654 | 0.9173 | 0.0973 | 0.053* | |
C6 | 0.4093 (3) | 1.0654 (3) | 0.1110 (2) | 0.0341 (7) | |
C7 | 0.5135 (3) | 1.0167 (3) | 0.1252 (2) | 0.0329 (7) | |
C8 | 0.6398 (3) | 1.0755 (3) | 0.1468 (3) | 0.0383 (8) | |
H8 | 0.6672 | 1.1550 | 0.1527 | 0.046* | |
C9 | 0.7315 (3) | 1.0169 (3) | 0.1605 (2) | 0.0373 (8) | |
C10 | 0.6825 (3) | 0.8946 (3) | 0.1508 (2) | 0.0364 (8) | |
C11 | 0.7630 (3) | 0.8262 (3) | 0.1641 (3) | 0.0408 (8) | |
C12 | 0.7130 (3) | 0.7104 (3) | 0.1546 (3) | 0.0485 (9) | |
H12 | 0.7671 | 0.6669 | 0.1655 | 0.058* | |
C13 | 0.5817 (3) | 0.6561 (3) | 0.1287 (3) | 0.0435 (8) | |
C14 | 0.4975 (3) | 0.7200 (3) | 0.1131 (3) | 0.0373 (8) | |
C15 | 0.5518 (3) | 0.8389 (3) | 0.1270 (2) | 0.0334 (7) | |
S1 | −0.31929 (8) | 0.40326 (7) | 0.37480 (7) | 0.0416 (2) | |
O14 | −0.4556 (2) | 0.16187 (18) | 0.37202 (17) | 0.0391 (6) | |
O15 | −0.8338 (2) | −0.0055 (2) | 0.3292 (2) | 0.0579 (7) | |
O16 | −0.8755 (2) | 0.1864 (2) | 0.3212 (3) | 0.0693 (9) | |
H16 | −0.8920 | 0.1170 | 0.3196 | 0.104* | |
O17 | −0.5301 (3) | 0.5183 (2) | 0.3526 (3) | 0.0708 (9) | |
H17 | −0.4520 | 0.5427 | 0.3656 | 0.106* | |
O18 | −0.2978 (3) | 0.5258 (2) | 0.3808 (3) | 0.0689 (9) | |
O19 | −0.2916 (2) | 0.3558 (2) | 0.28751 (19) | 0.0521 (7) | |
O20 | −0.2531 (2) | 0.3747 (2) | 0.46429 (19) | 0.0556 (7) | |
C16 | −0.2675 (3) | 0.0700 (3) | 0.4116 (3) | 0.0474 (9) | |
H16A | −0.2490 | 0.1491 | 0.4187 | 0.057* | |
C17 | −0.1700 (4) | 0.0242 (4) | 0.4252 (3) | 0.0601 (11) | |
H17A | −0.0859 | 0.0725 | 0.4406 | 0.072* | |
C18 | −0.1959 (4) | −0.0926 (4) | 0.4162 (3) | 0.0614 (11) | |
H18 | −0.1297 | −0.1232 | 0.4251 | 0.074* | |
C19 | −0.3201 (4) | −0.1637 (3) | 0.3939 (3) | 0.0613 (11) | |
H19 | −0.3379 | −0.2425 | 0.3893 | 0.074* | |
C20 | −0.4183 (4) | −0.1186 (3) | 0.3784 (3) | 0.0543 (10) | |
H20 | −0.5022 | −0.1675 | 0.3619 | 0.065* | |
C21 | −0.3936 (3) | −0.0018 (3) | 0.3871 (2) | 0.0396 (8) | |
C22 | −0.4987 (3) | 0.0466 (3) | 0.3714 (2) | 0.0392 (8) | |
C23 | −0.6230 (4) | −0.0108 (3) | 0.3576 (3) | 0.0460 (9) | |
H23 | −0.6490 | −0.0896 | 0.3570 | 0.055* | |
C24 | −0.7170 (3) | 0.0460 (3) | 0.3437 (3) | 0.0440 (9) | |
C25 | −0.6679 (3) | 0.1687 (3) | 0.3477 (3) | 0.0398 (8) | |
C26 | −0.7489 (3) | 0.2363 (3) | 0.3370 (3) | 0.0486 (9) | |
C27 | −0.6996 (3) | 0.3518 (3) | 0.3409 (3) | 0.0537 (10) | |
H27 | −0.7534 | 0.3958 | 0.3355 | 0.064* | |
C28 | −0.5694 (4) | 0.4046 (3) | 0.3529 (3) | 0.0491 (9) | |
C29 | −0.4845 (3) | 0.3408 (3) | 0.3635 (3) | 0.0378 (8) | |
C30 | −0.5383 (3) | 0.2232 (3) | 0.3608 (2) | 0.0371 (8) | |
O21 | −0.0582 (3) | 0.7003 (3) | 0.4724 (3) | 0.0810 (10) | |
H21B | −0.126 (3) | 0.648 (3) | 0.448 (3) | 0.080* | |
H21A | −0.022 (4) | 0.698 (4) | 0.5295 (16) | 0.080* | |
O22 | −0.0730 (3) | 0.2875 (2) | 0.3291 (2) | 0.0699 (8) | |
O23 | 0.0758 (3) | 0.7542 (2) | −0.0680 (2) | 0.0539 (7) | |
H23B | 0.139 (3) | 0.734 (4) | −0.063 (4) | 0.080* | |
H23A | 0.091 (4) | 0.809 (3) | −0.098 (3) | 0.080* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Ca1 | 0.0356 (4) | 0.0336 (4) | 0.0470 (4) | 0.0079 (3) | 0.0112 (3) | 0.0073 (3) |
S2 | 0.0317 (5) | 0.0357 (5) | 0.0573 (6) | 0.0038 (4) | 0.0169 (4) | 0.0026 (4) |
O1 | 0.0277 (12) | 0.0306 (12) | 0.0481 (14) | 0.0090 (10) | 0.0077 (10) | 0.0067 (10) |
O2 | 0.0272 (13) | 0.0438 (14) | 0.0663 (17) | 0.0011 (11) | 0.0060 (12) | 0.0070 (12) |
O3 | 0.0255 (13) | 0.0534 (16) | 0.083 (2) | 0.0134 (12) | 0.0080 (13) | 0.0070 (15) |
O4 | 0.0544 (17) | 0.0368 (15) | 0.104 (2) | 0.0180 (13) | 0.0249 (18) | 0.0126 (15) |
O5 | 0.0462 (16) | 0.0341 (14) | 0.112 (2) | 0.0042 (12) | 0.0365 (16) | −0.0017 (15) |
O6 | 0.0365 (15) | 0.0751 (19) | 0.0498 (16) | 0.0051 (14) | 0.0038 (12) | 0.0060 (14) |
O7 | 0.0452 (15) | 0.0417 (14) | 0.0638 (17) | 0.0107 (12) | 0.0272 (13) | 0.0079 (12) |
O8 | 0.0415 (15) | 0.0599 (18) | 0.0611 (18) | 0.0136 (13) | 0.0134 (14) | 0.0121 (15) |
O9 | 0.056 (2) | 0.0396 (16) | 0.110 (3) | 0.0005 (14) | 0.0415 (18) | −0.0045 (16) |
O10 | 0.075 (2) | 0.0539 (18) | 0.0548 (18) | −0.0136 (16) | −0.0018 (16) | 0.0158 (16) |
O11 | 0.0375 (15) | 0.0555 (17) | 0.0581 (18) | 0.0041 (13) | 0.0096 (13) | 0.0097 (14) |
O12 | 0.077 (2) | 0.0357 (15) | 0.071 (2) | 0.0152 (15) | 0.0338 (17) | 0.0048 (15) |
O13 | 0.069 (2) | 0.079 (2) | 0.071 (2) | 0.0456 (17) | 0.0370 (17) | 0.0371 (18) |
C1 | 0.043 (2) | 0.038 (2) | 0.045 (2) | 0.0132 (16) | 0.0130 (16) | 0.0061 (16) |
C2 | 0.058 (3) | 0.039 (2) | 0.058 (2) | 0.0242 (19) | 0.0158 (19) | 0.0144 (17) |
C3 | 0.051 (2) | 0.058 (3) | 0.059 (2) | 0.031 (2) | 0.0124 (19) | 0.012 (2) |
C4 | 0.032 (2) | 0.058 (3) | 0.067 (3) | 0.0143 (18) | 0.0086 (18) | 0.007 (2) |
C5 | 0.034 (2) | 0.0360 (19) | 0.057 (2) | 0.0088 (16) | 0.0074 (17) | 0.0053 (16) |
C6 | 0.0340 (18) | 0.0350 (18) | 0.0333 (17) | 0.0119 (15) | 0.0086 (14) | 0.0039 (14) |
C7 | 0.0328 (18) | 0.0322 (17) | 0.0322 (17) | 0.0095 (14) | 0.0073 (14) | 0.0038 (13) |
C8 | 0.0359 (19) | 0.0288 (17) | 0.048 (2) | 0.0078 (15) | 0.0110 (16) | 0.0069 (15) |
C9 | 0.0287 (18) | 0.0381 (19) | 0.0389 (19) | 0.0031 (15) | 0.0067 (14) | 0.0057 (15) |
C10 | 0.0298 (18) | 0.0387 (19) | 0.0399 (19) | 0.0103 (15) | 0.0076 (14) | 0.0084 (15) |
C11 | 0.0295 (18) | 0.047 (2) | 0.046 (2) | 0.0126 (16) | 0.0089 (15) | 0.0082 (16) |
C12 | 0.040 (2) | 0.047 (2) | 0.065 (3) | 0.0236 (18) | 0.0120 (18) | 0.0141 (19) |
C13 | 0.043 (2) | 0.036 (2) | 0.056 (2) | 0.0152 (16) | 0.0180 (17) | 0.0113 (16) |
C14 | 0.0336 (18) | 0.0337 (18) | 0.0451 (19) | 0.0093 (15) | 0.0133 (15) | 0.0074 (15) |
C15 | 0.0246 (16) | 0.0385 (18) | 0.0394 (18) | 0.0108 (14) | 0.0113 (14) | 0.0084 (14) |
S1 | 0.0318 (5) | 0.0354 (5) | 0.0513 (6) | 0.0048 (4) | 0.0067 (4) | 0.0057 (4) |
O14 | 0.0316 (13) | 0.0314 (12) | 0.0528 (14) | 0.0078 (10) | 0.0110 (11) | 0.0072 (10) |
O15 | 0.0353 (15) | 0.0471 (15) | 0.084 (2) | −0.0010 (12) | 0.0207 (14) | 0.0092 (14) |
O16 | 0.0327 (15) | 0.0594 (18) | 0.115 (3) | 0.0123 (13) | 0.0231 (16) | 0.0089 (19) |
O17 | 0.0482 (17) | 0.0341 (15) | 0.133 (3) | 0.0165 (13) | 0.0234 (19) | 0.0167 (16) |
O18 | 0.0450 (16) | 0.0344 (15) | 0.117 (3) | 0.0049 (13) | 0.0109 (16) | 0.0090 (15) |
O19 | 0.0381 (14) | 0.0573 (16) | 0.0547 (16) | 0.0056 (12) | 0.0149 (12) | 0.0051 (13) |
O20 | 0.0424 (15) | 0.0631 (17) | 0.0486 (15) | 0.0074 (13) | −0.0013 (12) | 0.0090 (13) |
C16 | 0.046 (2) | 0.0358 (19) | 0.056 (2) | 0.0113 (17) | 0.0063 (18) | 0.0089 (17) |
C17 | 0.045 (2) | 0.053 (2) | 0.075 (3) | 0.018 (2) | 0.000 (2) | 0.007 (2) |
C18 | 0.061 (3) | 0.060 (3) | 0.066 (3) | 0.034 (2) | 0.002 (2) | 0.007 (2) |
C19 | 0.075 (3) | 0.039 (2) | 0.072 (3) | 0.023 (2) | 0.014 (2) | 0.014 (2) |
C20 | 0.051 (2) | 0.045 (2) | 0.064 (3) | 0.0120 (19) | 0.015 (2) | 0.0100 (19) |
C21 | 0.043 (2) | 0.0350 (19) | 0.0396 (19) | 0.0107 (16) | 0.0095 (16) | 0.0111 (15) |
C22 | 0.042 (2) | 0.0309 (18) | 0.0414 (19) | 0.0065 (16) | 0.0105 (16) | 0.0062 (15) |
C23 | 0.045 (2) | 0.0340 (19) | 0.055 (2) | 0.0047 (17) | 0.0159 (18) | 0.0086 (16) |
C24 | 0.038 (2) | 0.040 (2) | 0.050 (2) | 0.0037 (17) | 0.0170 (17) | 0.0067 (16) |
C25 | 0.0315 (19) | 0.0391 (19) | 0.046 (2) | 0.0062 (15) | 0.0127 (15) | 0.0041 (15) |
C26 | 0.033 (2) | 0.049 (2) | 0.061 (2) | 0.0096 (17) | 0.0142 (17) | 0.0027 (18) |
C27 | 0.036 (2) | 0.047 (2) | 0.082 (3) | 0.0186 (18) | 0.0180 (19) | 0.007 (2) |
C28 | 0.042 (2) | 0.040 (2) | 0.066 (3) | 0.0147 (17) | 0.0131 (18) | 0.0093 (18) |
C29 | 0.0322 (18) | 0.0332 (18) | 0.046 (2) | 0.0076 (15) | 0.0108 (15) | 0.0045 (15) |
C30 | 0.0335 (18) | 0.0367 (19) | 0.0392 (19) | 0.0092 (15) | 0.0087 (15) | 0.0054 (15) |
O21 | 0.065 (2) | 0.079 (2) | 0.077 (2) | −0.0047 (18) | 0.0171 (19) | 0.003 (2) |
O22 | 0.072 (2) | 0.0505 (17) | 0.087 (2) | 0.0173 (15) | 0.0254 (17) | 0.0091 (15) |
O23 | 0.0456 (16) | 0.0439 (16) | 0.0679 (18) | 0.0051 (13) | 0.0177 (14) | 0.0126 (13) |
Ca1—O12 | 2.317 (3) | C9—C10 | 1.432 (5) |
Ca1—O9 | 2.331 (3) | C10—C15 | 1.389 (4) |
Ca1—O10 | 2.383 (3) | C10—C11 | 1.417 (5) |
Ca1—O13 | 2.383 (3) | C11—C12 | 1.359 (5) |
Ca1—O11 | 2.453 (3) | C12—C13 | 1.391 (5) |
Ca1—O8 | 2.456 (3) | C12—H12 | 0.9300 |
Ca1—O7 | 2.481 (3) | C13—C14 | 1.409 (5) |
Ca1—H8B | 2.74 (4) | C14—C15 | 1.393 (4) |
Ca1—H9B | 2.77 (4) | S1—O19 | 1.441 (3) |
S2—O7 | 1.445 (3) | S1—O20 | 1.448 (3) |
S2—O6 | 1.446 (3) | S1—O18 | 1.456 (3) |
S2—O5 | 1.464 (3) | S1—C29 | 1.769 (3) |
S2—C14 | 1.768 (3) | O14—C22 | 1.363 (4) |
O1—C7 | 1.359 (4) | O14—C30 | 1.368 (4) |
O1—C15 | 1.368 (4) | O15—C24 | 1.251 (4) |
O2—C9 | 1.267 (4) | O16—C26 | 1.344 (4) |
O3—C11 | 1.351 (4) | O16—H16 | 0.8200 |
O3—H3 | 0.8200 | O17—C28 | 1.345 (4) |
O4—C13 | 1.340 (4) | O17—H17 | 0.8200 |
O4—H4 | 0.8200 | C16—C17 | 1.375 (5) |
O8—H8A | 0.82 (3) | C16—C21 | 1.392 (5) |
O8—H8B | 0.82 (4) | C16—H16A | 0.9300 |
O9—H9A | 0.83 (3) | C17—C18 | 1.376 (6) |
O9—H9B | 0.82 (3) | C17—H17A | 0.9300 |
O10—H10A | 0.82 (3) | C18—C19 | 1.372 (6) |
O10—H10B | 0.82 (3) | C18—H18 | 0.9300 |
O11—H11B | 0.82 (3) | C19—C20 | 1.378 (6) |
O11—H11A | 0.82 (4) | C19—H19 | 0.9300 |
O12—H12A | 0.82 (4) | C20—C21 | 1.377 (5) |
O12—H12B | 0.81 (3) | C20—H20 | 0.9300 |
O13—H13B | 0.82 (3) | C21—C22 | 1.474 (5) |
O13—H13A | 0.82 (3) | C22—C23 | 1.340 (5) |
C1—C2 | 1.381 (5) | C23—C24 | 1.435 (5) |
C1—C6 | 1.403 (4) | C23—H23 | 0.9300 |
C1—H1 | 0.9300 | C24—C25 | 1.446 (5) |
C2—C3 | 1.372 (5) | C25—C30 | 1.387 (5) |
C2—H2 | 0.9300 | C25—C26 | 1.413 (5) |
C3—C4 | 1.381 (5) | C26—C27 | 1.363 (5) |
C3—H3A | 0.9300 | C27—C28 | 1.393 (5) |
C4—C5 | 1.380 (5) | C27—H27 | 0.9300 |
C4—H4A | 0.9300 | C28—C29 | 1.412 (5) |
C5—C6 | 1.391 (5) | C29—C30 | 1.395 (4) |
C5—H5 | 0.9300 | O21—H21B | 0.82 (3) |
C6—C7 | 1.468 (4) | O21—H21A | 0.83 (4) |
C7—C8 | 1.354 (4) | O23—H23B | 0.82 (4) |
C8—C9 | 1.429 (5) | O23—H23A | 0.82 (4) |
C8—H8 | 0.9300 | ||
O12—Ca1—O9 | 166.74 (12) | C8—C7—C6 | 126.7 (3) |
O12—Ca1—O10 | 79.54 (12) | O1—C7—C6 | 111.8 (3) |
O9—Ca1—O10 | 87.19 (13) | C7—C8—C9 | 120.9 (3) |
O12—Ca1—O13 | 78.35 (12) | C7—C8—H8 | 119.6 |
O9—Ca1—O13 | 113.01 (13) | C9—C8—H8 | 119.6 |
O10—Ca1—O13 | 142.40 (12) | O2—C9—C8 | 121.9 (3) |
O12—Ca1—O11 | 95.00 (11) | O2—C9—C10 | 121.5 (3) |
O9—Ca1—O11 | 81.03 (11) | C8—C9—C10 | 116.5 (3) |
O10—Ca1—O11 | 72.82 (10) | C15—C10—C11 | 117.6 (3) |
O13—Ca1—O11 | 79.24 (11) | C15—C10—C9 | 120.0 (3) |
O12—Ca1—O8 | 82.43 (11) | C11—C10—C9 | 122.4 (3) |
O9—Ca1—O8 | 94.11 (11) | O3—C11—C12 | 119.7 (3) |
O10—Ca1—O8 | 74.99 (11) | O3—C11—C10 | 119.6 (3) |
O13—Ca1—O8 | 130.90 (11) | C12—C11—C10 | 120.7 (3) |
O11—Ca1—O8 | 147.62 (10) | C11—C12—C13 | 120.7 (3) |
O12—Ca1—O7 | 113.40 (10) | C11—C12—H12 | 119.6 |
O9—Ca1—O7 | 77.30 (9) | C13—C12—H12 | 119.6 |
O10—Ca1—O7 | 142.23 (12) | O4—C13—C12 | 115.9 (3) |
O13—Ca1—O7 | 75.02 (10) | O4—C13—C14 | 123.2 (3) |
O11—Ca1—O7 | 136.16 (10) | C12—C13—C14 | 120.8 (3) |
O8—Ca1—O7 | 72.10 (10) | C15—C14—C13 | 117.0 (3) |
O12—Ca1—H8B | 99.3 (5) | C15—C14—S2 | 120.0 (2) |
O9—Ca1—H8B | 77.3 (5) | C13—C14—S2 | 122.9 (3) |
O10—Ca1—H8B | 76.7 (10) | O1—C15—C10 | 120.3 (3) |
O13—Ca1—H8B | 136.9 (10) | O1—C15—C14 | 116.6 (3) |
O11—Ca1—H8B | 143.1 (10) | C10—C15—C14 | 123.1 (3) |
O8—Ca1—H8B | 17.0 (5) | O19—S1—O20 | 111.90 (16) |
O7—Ca1—H8B | 66.5 (10) | O19—S1—O18 | 112.13 (18) |
O12—Ca1—H9B | 169.3 (9) | O20—S1—O18 | 112.59 (17) |
O9—Ca1—H9B | 15.9 (7) | O19—S1—C29 | 107.48 (15) |
O10—Ca1—H9B | 98.9 (8) | O20—S1—C29 | 107.24 (16) |
O13—Ca1—H9B | 108.1 (10) | O18—S1—C29 | 105.01 (16) |
O11—Ca1—H9B | 94.7 (8) | C22—O14—C30 | 120.7 (3) |
O8—Ca1—H9B | 86.9 (9) | C26—O16—H16 | 109.5 |
O7—Ca1—H9B | 61.6 (7) | C28—O17—H17 | 109.5 |
H8B—Ca1—H9B | 70.1 (11) | C17—C16—C21 | 120.1 (3) |
O7—S2—O6 | 112.63 (17) | C17—C16—H16A | 120.0 |
O7—S2—O5 | 112.18 (16) | C21—C16—H16A | 120.0 |
O6—S2—O5 | 111.20 (18) | C16—C17—C18 | 120.5 (4) |
O7—S2—C14 | 108.38 (16) | C16—C17—H17A | 119.7 |
O6—S2—C14 | 106.78 (16) | C18—C17—H17A | 119.7 |
O5—S2—C14 | 105.20 (16) | C19—C18—C17 | 119.6 (4) |
C7—O1—C15 | 120.8 (2) | C19—C18—H18 | 120.2 |
C11—O3—H3 | 109.5 | C17—C18—H18 | 120.2 |
C13—O4—H4 | 109.5 | C18—C19—C20 | 120.3 (4) |
S2—O7—Ca1 | 141.98 (14) | C18—C19—H19 | 119.9 |
Ca1—O8—H8A | 106 (3) | C20—C19—H19 | 119.9 |
Ca1—O8—H8B | 102 (3) | C21—C20—C19 | 120.6 (4) |
H8A—O8—H8B | 114 (5) | C21—C20—H20 | 119.7 |
Ca1—O9—H9A | 129 (3) | C19—C20—H20 | 119.7 |
Ca1—O9—H9B | 114 (3) | C20—C21—C16 | 118.9 (3) |
H9A—O9—H9B | 114 (5) | C20—C21—C22 | 120.7 (3) |
Ca1—O10—H10A | 117 (3) | C16—C21—C22 | 120.4 (3) |
Ca1—O10—H10B | 127 (3) | C23—C22—O14 | 121.4 (3) |
H10A—O10—H10B | 112 (5) | C23—C22—C21 | 126.8 (3) |
Ca1—O11—H11B | 125 (3) | O14—C22—C21 | 111.8 (3) |
Ca1—O11—H11A | 128 (3) | C22—C23—C24 | 121.8 (3) |
H11B—O11—H11A | 104 (5) | C22—C23—H23 | 119.1 |
Ca1—O12—H12A | 121 (3) | C24—C23—H23 | 119.1 |
Ca1—O12—H12B | 134 (4) | O15—C24—C23 | 123.3 (3) |
H12A—O12—H12B | 105 (5) | O15—C24—C25 | 121.3 (3) |
Ca1—O13—H13B | 122 (3) | C23—C24—C25 | 115.4 (3) |
Ca1—O13—H13A | 129 (4) | C30—C25—C26 | 118.1 (3) |
H13B—O13—H13A | 109 (5) | C30—C25—C24 | 120.1 (3) |
C2—C1—C6 | 119.9 (3) | C26—C25—C24 | 121.8 (3) |
C2—C1—H1 | 120.1 | O16—C26—C27 | 119.8 (3) |
C6—C1—H1 | 120.1 | O16—C26—C25 | 120.0 (3) |
C3—C2—C1 | 120.7 (3) | C27—C26—C25 | 120.3 (3) |
C3—C2—H2 | 119.6 | C26—C27—C28 | 120.7 (3) |
C1—C2—H2 | 119.6 | C26—C27—H27 | 119.6 |
C2—C3—C4 | 119.9 (4) | C28—C27—H27 | 119.6 |
C2—C3—H3A | 120.0 | O17—C28—C27 | 116.5 (3) |
C4—C3—H3A | 120.0 | O17—C28—C29 | 122.3 (3) |
C5—C4—C3 | 120.3 (4) | C27—C28—C29 | 121.2 (3) |
C5—C4—H4A | 119.9 | C30—C29—C28 | 116.4 (3) |
C3—C4—H4A | 119.9 | C30—C29—S1 | 120.7 (3) |
C4—C5—C6 | 120.4 (3) | C28—C29—S1 | 122.8 (3) |
C4—C5—H5 | 119.8 | O14—C30—C25 | 120.5 (3) |
C6—C5—H5 | 119.8 | O14—C30—C29 | 116.2 (3) |
C5—C6—C1 | 118.8 (3) | C25—C30—C29 | 123.3 (3) |
C5—C6—C7 | 120.7 (3) | H21B—O21—H21A | 115 (5) |
C1—C6—C7 | 120.4 (3) | H23B—O23—H23A | 103 (5) |
C8—C7—O1 | 121.4 (3) | ||
O6—S2—O7—Ca1 | 102.4 (3) | C13—C14—C15—O1 | −178.3 (3) |
O5—S2—O7—Ca1 | −23.9 (3) | S2—C14—C15—O1 | 4.8 (4) |
C14—S2—O7—Ca1 | −139.7 (2) | C13—C14—C15—C10 | 2.8 (5) |
O12—Ca1—O7—S2 | −176.2 (2) | S2—C14—C15—C10 | −174.1 (3) |
O9—Ca1—O7—S2 | 12.1 (3) | C21—C16—C17—C18 | −0.9 (6) |
O10—Ca1—O7—S2 | 80.2 (3) | C16—C17—C18—C19 | −0.3 (7) |
O13—Ca1—O7—S2 | −106.3 (3) | C17—C18—C19—C20 | 1.5 (7) |
O11—Ca1—O7—S2 | −50.2 (3) | C18—C19—C20—C21 | −1.4 (7) |
O8—Ca1—O7—S2 | 110.7 (3) | C19—C20—C21—C16 | 0.2 (6) |
C6—C1—C2—C3 | 0.1 (5) | C19—C20—C21—C22 | −179.4 (4) |
C1—C2—C3—C4 | 0.6 (6) | C17—C16—C21—C20 | 1.0 (6) |
C2—C3—C4—C5 | −0.6 (6) | C17—C16—C21—C22 | −179.4 (4) |
C3—C4—C5—C6 | −0.1 (6) | C30—O14—C22—C23 | 1.6 (5) |
C4—C5—C6—C1 | 0.7 (5) | C30—O14—C22—C21 | −178.6 (3) |
C4—C5—C6—C7 | 179.9 (3) | C20—C21—C22—C23 | 6.8 (6) |
C2—C1—C6—C5 | −0.8 (5) | C16—C21—C22—C23 | −172.7 (4) |
C2—C1—C6—C7 | −179.9 (3) | C20—C21—C22—O14 | −173.0 (3) |
C15—O1—C7—C8 | 1.3 (5) | C16—C21—C22—O14 | 7.4 (5) |
C15—O1—C7—C6 | −178.5 (3) | O14—C22—C23—C24 | −0.6 (5) |
C5—C6—C7—C8 | −174.4 (3) | C21—C22—C23—C24 | 179.6 (3) |
C1—C6—C7—C8 | 4.7 (5) | C22—C23—C24—O15 | 179.0 (3) |
C5—C6—C7—O1 | 5.4 (4) | C22—C23—C24—C25 | −1.2 (5) |
C1—C6—C7—O1 | −175.5 (3) | O15—C24—C25—C30 | −178.0 (3) |
O1—C7—C8—C9 | −1.0 (5) | C23—C24—C25—C30 | 2.1 (5) |
C6—C7—C8—C9 | 178.8 (3) | O15—C24—C25—C26 | 1.0 (6) |
C7—C8—C9—O2 | 178.9 (3) | C23—C24—C25—C26 | −178.9 (3) |
C7—C8—C9—C10 | −0.4 (5) | C30—C25—C26—O16 | 178.1 (3) |
O2—C9—C10—C15 | −177.9 (3) | C24—C25—C26—O16 | −1.0 (6) |
C8—C9—C10—C15 | 1.3 (5) | C30—C25—C26—C27 | −0.8 (6) |
O2—C9—C10—C11 | 1.8 (5) | C24—C25—C26—C27 | −179.9 (4) |
C8—C9—C10—C11 | −178.9 (3) | O16—C26—C27—C28 | −177.2 (4) |
C15—C10—C11—O3 | 178.8 (3) | C25—C26—C27—C28 | 1.6 (6) |
C9—C10—C11—O3 | −0.9 (5) | C26—C27—C28—O17 | 177.9 (4) |
C15—C10—C11—C12 | −0.5 (5) | C26—C27—C28—C29 | −1.4 (6) |
C9—C10—C11—C12 | 179.8 (3) | O17—C28—C29—C30 | −178.9 (4) |
O3—C11—C12—C13 | −177.4 (3) | C27—C28—C29—C30 | 0.3 (6) |
C10—C11—C12—C13 | 1.9 (6) | O17—C28—C29—S1 | −1.4 (6) |
C11—C12—C13—O4 | 178.1 (4) | C27—C28—C29—S1 | 177.9 (3) |
C11—C12—C13—C14 | −1.0 (6) | O19—S1—C29—C30 | 63.6 (3) |
O4—C13—C14—C15 | 179.7 (3) | O20—S1—C29—C30 | −56.9 (3) |
C12—C13—C14—C15 | −1.3 (5) | O18—S1—C29—C30 | −176.8 (3) |
O4—C13—C14—S2 | −3.5 (5) | O19—S1—C29—C28 | −113.8 (3) |
C12—C13—C14—S2 | 175.5 (3) | O20—S1—C29—C28 | 125.7 (3) |
O7—S2—C14—C15 | −63.6 (3) | O18—S1—C29—C28 | 5.7 (4) |
O6—S2—C14—C15 | 58.0 (3) | C22—O14—C30—C25 | −0.6 (5) |
O5—S2—C14—C15 | 176.3 (3) | C22—O14—C30—C29 | 179.4 (3) |
O7—S2—C14—C13 | 119.7 (3) | C26—C25—C30—O14 | 179.6 (3) |
O6—S2—C14—C13 | −118.7 (3) | C24—C25—C30—O14 | −1.2 (5) |
O5—S2—C14—C13 | −0.5 (4) | C26—C25—C30—C29 | −0.3 (5) |
C7—O1—C15—C10 | −0.3 (4) | C24—C25—C30—C29 | 178.8 (3) |
C7—O1—C15—C14 | −179.2 (3) | C28—C29—C30—O14 | −179.4 (3) |
C11—C10—C15—O1 | 179.2 (3) | S1—C29—C30—O14 | 3.0 (4) |
C9—C10—C15—O1 | −1.0 (5) | C28—C29—C30—C25 | 0.5 (5) |
C11—C10—C15—C14 | −2.0 (5) | S1—C29—C30—C25 | −177.1 (3) |
C9—C10—C15—C14 | 177.8 (3) |
D—H···A | D—H | H···A | D···A | D—H···A |
O3—H3···O2 | 0.82 | 1.85 | 2.576 (4) | 148 |
O4—H4···O5 | 0.82 | 1.82 | 2.579 (4) | 153 |
O8—H8B···O17i | 0.82 (4) | 2.20 (3) | 2.934 (4) | 149 (4) |
O8—H8A···O20ii | 0.82 (3) | 1.97 (3) | 2.790 (4) | 176 (5) |
O9—H9B···O5 | 0.82 (4) | 1.99 (4) | 2.780 (4) | 163 (5) |
O9—H9A···O23iii | 0.83 (3) | 1.92 (3) | 2.743 (4) | 175 (5) |
O10—H10B···O20ii | 0.82 (3) | 2.13 (2) | 2.874 (4) | 151 (5) |
O10—H10A···O22 | 0.82 (3) | 1.90 (3) | 2.715 (4) | 171 (5) |
O11—H11B···O6iii | 0.82 (3) | 2.36 (3) | 3.024 (4) | 139 (4) |
O11—H11A···O19 | 0.82 (4) | 2.19 (4) | 3.003 (4) | 175 (5) |
O12—H12B···O15iv | 0.81 (3) | 1.98 (3) | 2.771 (4) | 165 (5) |
O12—H12A···O21 | 0.82 (4) | 1.88 (4) | 2.695 (5) | 177 (4) |
O13—H13B···O3v | 0.82 (4) | 2.05 (4) | 2.867 (4) | 174 (5) |
O13—H13A···O23 | 0.82 (3) | 2.00 (3) | 2.819 (4) | 173 (5) |
O16—H16···O15 | 0.82 | 1.83 | 2.567 (4) | 148 |
O17—H17···O18 | 0.82 | 1.80 | 2.556 (4) | 153 |
O21—H21B···O18 | 0.82 (3) | 2.05 (4) | 2.870 (4) | 176 (5) |
O21—H21A···O22ii | 0.82 (3) | 2.01 (3) | 2.826 (5) | 173 (5) |
O23—H23A···O2vi | 0.82 (4) | 2.00 (4) | 2.816 (4) | 171 (5) |
O23—H23B···O6 | 0.82 (4) | 1.95 (4) | 2.755 (4) | 168 (5) |
C12—H12···O11i | 0.93 | 2.55 | 3.462 (5) | 168 |
C20—H20···O8vii | 0.93 | 2.52 | 3.410 (5) | 161 |
Symmetry codes: (i) x+1, y, z; (ii) −x, −y+1, −z+1; (iii) −x, −y+1, −z; (iv) x+1, y+1, z; (v) x−1, y, z; (vi) −x+1, −y+2, −z; (vii) x−1, y−1, z. |
Experimental details
Crystal data | |
Chemical formula | [Ca(C15H9O7S)(H2O)6](C15H9O7S)·3H2O |
Mr | 868.79 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 296 |
a, b, c (Å) | 11.360 (2), 12.390 (1), 13.975 (2) |
α, β, γ (°) | 95.136 (2), 102.167 (3), 107.423 (2) |
V (Å3) | 1809.9 (4) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.38 |
Crystal size (mm) | 0.36 × 0.23 × 0.14 |
Data collection | |
Diffractometer | Bruker SMART CCD area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Bruker, 1999) |
Tmin, Tmax | 0.874, 0.947 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 9179, 6299, 4416 |
Rint | 0.026 |
(sin θ/λ)max (Å−1) | 0.596 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.055, 0.167, 1.04 |
No. of reflections | 6299 |
No. of parameters | 558 |
No. of restraints | 16 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.40, −0.40 |
Computer programs: SMART (Bruker, 1999), SAINT-Plus (Bruker, 1999), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
O3—H3···O2 | 0.82 | 1.85 | 2.576 (4) | 147.6 |
O4—H4···O5 | 0.82 | 1.82 | 2.579 (4) | 152.6 |
O8—H8B···O17i | 0.82 (4) | 2.20 (3) | 2.934 (4) | 149 (4) |
O8—H8A···O20ii | 0.82 (3) | 1.97 (3) | 2.790 (4) | 176 (5) |
O9—H9B···O5 | 0.82 (4) | 1.99 (4) | 2.780 (4) | 163 (5) |
O9—H9A···O23iii | 0.83 (3) | 1.92 (3) | 2.743 (4) | 175 (5) |
O10—H10B···O20ii | 0.82 (3) | 2.13 (2) | 2.874 (4) | 151 (5) |
O10—H10A···O22 | 0.82 (3) | 1.90 (3) | 2.715 (4) | 171 (5) |
O11—H11B···O6iii | 0.82 (3) | 2.36 (3) | 3.024 (4) | 139 (4) |
O11—H11A···O19 | 0.82 (4) | 2.19 (4) | 3.003 (4) | 175 (5) |
O12—H12B···O15iv | 0.81 (3) | 1.98 (3) | 2.771 (4) | 165 (5) |
O12—H12A···O21 | 0.82 (4) | 1.88 (4) | 2.695 (5) | 177 (4) |
O13—H13B···O3v | 0.82 (4) | 2.05 (4) | 2.867 (4) | 174 (5) |
O13—H13A···O23 | 0.82 (3) | 2.00 (3) | 2.819 (4) | 173 (5) |
O16—H16···O15 | 0.82 | 1.83 | 2.567 (4) | 148.3 |
O17—H17···O18 | 0.82 | 1.80 | 2.556 (4) | 153.3 |
O21—H21B···O18 | 0.82 (3) | 2.05 (4) | 2.870 (4) | 176 (5) |
O21—H21A···O22ii | 0.82 (3) | 2.01 (3) | 2.826 (5) | 173 (5) |
O23—H23A···O2vi | 0.82 (4) | 2.00 (4) | 2.816 (4) | 171 (5) |
O23—H23B···O6 | 0.82 (4) | 1.95 (4) | 2.755 (4) | 168 (5) |
C12—H12···O11i | 0.93 | 2.55 | 3.462 (5) | 167.8 |
C20—H20···O8vii | 0.93 | 2.52 | 3.410 (5) | 160.8 |
Symmetry codes: (i) x+1, y, z; (ii) −x, −y+1, −z+1; (iii) −x, −y+1, −z; (iv) x+1, y+1, z; (v) x−1, y, z; (vi) −x+1, −y+2, −z; (vii) x−1, y−1, z. |
Acknowledgements
Support from the Natural Science Foundation of Shaanxi Province (grant No. 2005B01) is gratefully acknowledged.
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Chrysin (5,7-dihydroxyflavone), a naturally wide distributed flavonoid, has many different biological activities such as anti-oxidant (Chan et al., 2000), anti-virus (Lee et al., 1999), anti-diabetogenic activity (Shin et al., 1999), anti-anxiolytic effect (Zanoli et al., 2000). Sulfonates belong to an important class of organic compounds, particularly flavonoidsulfonates have many different biological activities (Hiroyuki et al., 1996; Jiang et al., 2001). Previously, two chrysinsulfonate derivatives have been prepared. Zhang et al. (2004, 2006a, 2006b) have synthesized chrysin-6-sulfonate and its derivates, such as [Ba(C15H9O7S)2]n, [Zn(C15H8O7S)(DMSO)]2.H2O and [{Ca(C15H8O7S)(H2O)(DMSO)}3 {Ca(C15H8O7S)(DMSO)2}].4DMSO. Pusz et al. (2001) have reported chrysin-4'-sulfonate and its Ti4+, Mn2+ and Fe3+ complexes. On the other hand, the weak coordination nature of SO3- makes its coordination mode very flexible and sensitive to the chemical environment (Cote & Shimizu, 2003). Here we report the crystal structure of the title compound (Fig. 1).
As shown in Fig. 1, the Ca atom is seven-coordinated by the six O atoms from water molecules and the one sulfonate O atom. The Ca—O bond lengths are in agreement with the corresponding values in [Ca(C16H12O4)(H2O)6]. H2O (Morin et al., 2000). The flavone skeleton is essentially planar, the bond lengths and angles are similar to those reported for other flavonesulfonates, [Co(H2O)6](C16H11O7S)2.4H2O (Li & Zhang, 2008). The molecular packing (Fig. 2) is stabilized by two different aromatic π–π interactions within each stack of molecule; one between the phenyl ring (Cg1) and the benzene ring (Cg4ii) of the adjacent molecules {distance; 3.765 (5) Å}, and the other between the benzene ring (Cg2) and the phenyl ring (Cg3ii) of the neighbouring molecules {distance; 3.896 (5) Å} (Fig. 2; Cg1, Cg2, Cg3 and Cg4 are the centroids of the C1–C6 phenyl, the C10–C15 benzene, the C16–C21 phenyl and the C25–C30 benzene rings, respectively, symmetry code as in Fig. 2). Additionally, the crystal structure exhibits numerous inter- and intramolecular O—H···O hydrogen bonds (Fig. 1 & Hydrogen-bond geometry).