metal-organic compounds
Bis(2,2′-bipyridyl-κ2N,N′)bis(2-hydroxybenzoato)-κO1;κ2O1,O1′-cadmium(II) methanol solvate
aLaboratoire de Cristallographie et RMN Biologiques, UMR 8015 CNRS, Faculté des Sciences Pharmaceutiques et Biologiques de Paris Descartes, 4, avenue de l'Observatoire 75270 Paris Cedex 06, France
*Correspondence e-mail: pascale.lemoine@parisdescartes.fr
The title compound, [Cd(C7H5O3)2(C10H8N2)2]·CH3OH, contains one monomeric seven-coordinate cadmium complex and one methanol solvate molecule. The CdII atom is coordinated to two 2,2′-bipyridyl ligands via the N atoms and to two salicylate anions (Hsal−) via the carboxylate O atoms, which act as monodentate ligand for the one and bidentate ligand for the second. The CdII atom exhibits a {6 + 1} environment, approximately described as a distorted capped octahedron with the apical positions occupied by one of the two N atoms belonging to one bipyridyl ligand and one of the two carboxylate O atoms from the monodentate Hsal− ligand. Two intramolecular six-membered hydrogen-bonded rings are present, generated from interactions between the carboxylate and hydroxy groups of the salicylate ligands. There is one intermolecular hydrogen-bonding interaction involving the methanol solvent molecule and the carboxylate group from the monodentate Hsal− ligand. The crystal packing is governed by π–π stacking interactions [centroid–centroid distance = 3.783 (4) Å] which occur between bipyridyl ligands, by C—H⋯O and C—H⋯π interactions and by numerous van der Waals contacts.
Related literature
For related structures, see: Lemoine et al. (2004); Mazurier et al. (2000); Tomas et al. (2006); Turner et al. (1982). For the anti-inflammatory properties of zinc complexes, see: Sorensen (2002 and references therein).
Experimental
Crystal data
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Data collection
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Refinement
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Data collection: CAD-4 EXPRESS (Enraf–Nonius, 1994); cell CAD-4 EXPRESS; data reduction: XCAD4 (Harms & Wocadlo, 1995); program(s) used to solve structure: SIR92 (Altomare et al., 1994); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: CAMERON (Watkin et al., 1996); software used to prepare material for publication: WinGX (Farrugia, 1999).
Supporting information
https://doi.org/10.1107/S1600536809054610/dn2517sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536809054610/dn2517Isup2.hkl
The cadmium(II) salicylate [CdII(Sal)2] was prepared by reaction of Cd(NO3)2.4H2O with NaSal after neutralizing HSal by a NaOH solution. An amount of 0.387 g of CdII(Sal)2 (1 mmole) and 0.313 g of 2,2'-bipyridyl (2 mmole) were dissolved in 20 ml of methanol. The solution was stirred at 60°C under reflux conditions for one hour to give the complex. Single crystals were obtained by slow evaporation of this solution at room temperature (293 K).
All H atoms were positioned geometrically and refined using a riding model with distances C—H = 0.96 Å (CH3) with Uiso(H) = 1.5 times Ueq(C) or 0.93 Å (CH phenyl) with Uiso(H) = 1.2 times Ueq(C); O—H = 0.82 Å (O3, O13 and O61) with Uiso(H) = 1.2 times Ueq(O).
Recently we described the κ2N,N')(salicylato-κ2O,O')(salicylato-κO)cadmium(II) methanol solvate.
of bis(3,5-diisopropylsalicylato)(2,9-dimethyl-1,10-phenanthroline)cadmium(II) complex (Tomas et al., 2006) as an extension of an ongoing investigation of non-steroidal anti-inflammatory drug zinc carboxylate complexes. Zinc is an essential metalloelement required by all cells for activation of a large number of Zn-dependent enzymes (Sorenson, 2002 and references therein). Various zinc carboxylates exhibit favorable anti-inflammatory, analgesic and antipyretic properties. In previous work, we have synthesized and structurally characterized two ternary complexes of Zn(II) with 3,5-diisopropylsalicylate and 1,10-phenanthroline or 2,9-dimethyl-1,10-phenanthroline (Lemoine et al., 2004). Anticonvulsant and rotorod toxicity activities of these complexes were determined to examine structure-anticonvulsant and structure-hypnotic activities of these Zn(II) non- steroidal antiinflammatory agent complexes. Since zinc and cadmium belong to the same group 12 of the periodic system of elements, following this work, we report in this paper the synthesis and the structure of the bis(2,2'-bipyridyl-The title compound contains one monomeric seven- coordinate cadmium complex and one methanol solvate molecule. CdII is coordinate-covalently bonded to two 2,2'-bipyridyl bidendate ligands via N21 and N30 or N41 and N50 atoms and to two salicylate (Hsal-) anionic ligands, one of which is monodentate via O11 atom and the other is bidentate via O1 and O2 atoms (Fig. 1). Therefore, the cadmium atom exhibits a {6 + 1} environment, approximately described as a distorted capped octahedron. According to this description, the Cd atom lies 0.127 (2) Å out of the basal plane [O1, N30, N41, N50] with the apical positions occupied by N21 and O11. The O2 atom caps the triangular face formed by O1, N21 and N50. This very irregular geometry is imposed by the small bite angles of one salicylate [O1—Cd—O2, 50.7 (2)°] and the two bipyridyl [N21—Cd—N30, 69.0 (1) °; N41—Cd—N50, 69.3 (1) °] bidentate ligands, mainly due to the rigidity of these chelate molecules. The Cd—N bond lengths are very similar [average 2.367 (4) Å] and comparable with distances found in other bipyridine containing Cd complexes (Turner et al., 1982). The distances between Cd and the oxygen atoms are the following: d(Cd—O1) = 2.391 (5) Å and d(Cd—O2) = 2.685 (5) Å for the first salicylate ligand and d(Cd—O11) = 2.305 (3) Å for the second ligand. The longer Cd—O2 distance is comparable to that described in the bis(salicylato)(2,2'-bipyridyl) (dimethylformamide)cadmium(II) (Mazurier et al., 2000) in a (6 + 1) environment (2.667 Å). The bond lengths and angles of the complexed salicylate ligands and 2,2'-bipyridyl are normal. The
of CdII by the Hsal- ligand leads to planar ring, P1 (O1/C1/O2/Cd) with the maximum deviation of 0.026 (4) Å for C1 atom. The phenyl mean planes P2 [C2—C7] and P3 [C12—C17] [maximum deviation of 0.003 (4) Å for C7] in the salicylate ligands make a dihedral 70.5 (2) °. The bipyridyl ligands are essentially planar (maximum deviation of 0.067 (5) Å for C48) and the CdII atom is displaced from the least-squares planes P4 [N21/C22- C29/N30/C31—C32] by 0.139 (5) Å and from P5 [N41/C42- C49/N50/C51—C52] by 0.251 (5) Å. The dihedral angles between planes P4 and P5 is 82.1 (1) °.The hydroxy H3 (or H13) atom attached to O3 (or O13) is involved in intramolecular via O1 (or O11) atom (Table 1) thus contributing to planarity of the rings [O1 C1 C2 C3 O3 H3 and O11 C11 C12 C13 O13 H13] (maximum deviation of 0.022 (2) Å for H3). There is one intermolecular hydrogen bonding interaction involving the solvate methanol molecule and the carboxylate O12 atom (Table 1).
Moreover, the packing is governed by π - π stacking interactions which occur between bipyridyl ligands [N21/C22—C25/C32 and N30/C26—C29/C31] through inversion centre at (1/2, 1/2, 1/2) with a centroid-to-centroid distance of 3.783 (4) Å, an average spacing of 3.50 Å with an offset of 22.1°. In addition, there are three C—H···O interactions (Table 1) and three C– H···Cg(π-ring) interactions (Table 1, Cg1 being the centroid of the ring C2 to C7 and Cg2 the centroid of the ring C12 to C17).
For related structures, see: Lemoine et al. (2004); Mazurier et al. (2000); Tomas et al. (2006); Turner et al. (1982). For the anti-inflammatory properties of zinc complexes, see: Sorensen (2002 and references therein).
Data collection: CAD-4 EXPRESS (Enraf–Nonius, 1994); cell
CAD-4 EXPRESS (Enraf–Nonius, 1994); data reduction: XCAD4 (Harms & Wocadlo, 1995); program(s) used to solve structure: SIR92 (Altomare et al., 1994); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: CAMERON (Watkin et al., 1996); software used to prepare material for publication: WinGX (Version 1.63.02; Farrugia, 1999).Fig. 1. Molecular view of the solvate methanol complex showing atomic numbering and O—H–O hydrogen bonds in dotted lines. Displacements ellipsoïds are drawn at the 30% probability level. |
[Cd(C7H5O3)2(C10H8N2)2]·CH4O | Z = 2 |
Mr = 731.03 | F(000) = 744 |
Triclinic, P1 | Dx = 1.513 Mg m−3 Dm = 1.53 (2) Mg m−3 Dm measured by flotation (CCl4/CH2Cl2) |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 9.115 (4) Å | Cell parameters from 25 reflections |
b = 12.189 (2) Å | θ = 1.7–8.9° |
c = 14.883 (2) Å | µ = 0.74 mm−1 |
α = 97.64 (1)° | T = 293 K |
β = 92.30 (3)° | Parallelepiped, colourless |
γ = 101.00 (3)° | 0.40 × 0.18 × 0.13 mm |
V = 1605.1 (8) Å3 |
Enraf–Nonius CAD-4 diffractometer | Rint = 0.040 |
Radiation source: fine-focus sealed tube | θmax = 30.0°, θmin = 2.1° |
Graphite monochromator | h = −12→12 |
ω–2θ scans | k = −17→16 |
9433 measured reflections | l = 0→20 |
9117 independent reflections | 3 standard reflections every 60 min |
4943 reflections with I > 2σ(I) | intensity decay: none |
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)] = 0.048 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.138 | H-atom parameters constrained |
S = 0.97 | w = 1/[σ2(Fo2) + (0.0472P)2] where P = (Fo2 + 2Fc2)/3 |
9117 reflections | (Δ/σ)max = 0.001 |
423 parameters | Δρmax = 0.37 e Å−3 |
0 restraints | Δρmin = −0.85 e Å−3 |
[Cd(C7H5O3)2(C10H8N2)2]·CH4O | γ = 101.00 (3)° |
Mr = 731.03 | V = 1605.1 (8) Å3 |
Triclinic, P1 | Z = 2 |
a = 9.115 (4) Å | Mo Kα radiation |
b = 12.189 (2) Å | µ = 0.74 mm−1 |
c = 14.883 (2) Å | T = 293 K |
α = 97.64 (1)° | 0.40 × 0.18 × 0.13 mm |
β = 92.30 (3)° |
Enraf–Nonius CAD-4 diffractometer | Rint = 0.040 |
9433 measured reflections | 3 standard reflections every 60 min |
9117 independent reflections | intensity decay: none |
4943 reflections with I > 2σ(I) |
R[F2 > 2σ(F2)] = 0.048 | 0 restraints |
wR(F2) = 0.138 | H-atom parameters constrained |
S = 0.97 | Δρmax = 0.37 e Å−3 |
9117 reflections | Δρmin = −0.85 e Å−3 |
423 parameters |
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 and torsion 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. 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. |
x | y | z | Uiso*/Ueq | ||
Cd1 | 0.22853 (3) | 0.25632 (3) | 0.68934 (2) | 0.04219 (10) | |
O1 | −0.0186 (6) | 0.1908 (3) | 0.7336 (3) | 0.1081 (18) | |
O2 | 0.1325 (5) | 0.0950 (5) | 0.7918 (3) | 0.1118 (18) | |
O3 | −0.2935 (6) | 0.1625 (4) | 0.7678 (3) | 0.0960 (14) | |
H3 | −0.2179 | 0.1873 | 0.7431 | 0.115* | |
C1 | 0.0072 (8) | 0.1196 (5) | 0.7824 (4) | 0.081 (2) | |
C2 | −0.1228 (5) | 0.0620 (4) | 0.8296 (3) | 0.0522 (11) | |
C3 | −0.2629 (6) | 0.0880 (4) | 0.8216 (3) | 0.0570 (12) | |
C4 | −0.3779 (6) | 0.0353 (5) | 0.8688 (4) | 0.0689 (14) | |
H4 | −0.4730 | 0.0519 | 0.8634 | 0.083* | |
C5 | −0.3499 (6) | −0.0414 (5) | 0.9234 (4) | 0.0707 (14) | |
H5 | −0.4266 | −0.0764 | 0.9554 | 0.085* | |
C6 | −0.2113 (7) | −0.0672 (5) | 0.9316 (4) | 0.0716 (14) | |
H6 | −0.1937 | −0.1193 | 0.9690 | 0.086* | |
C7 | −0.0989 (6) | −0.0162 (4) | 0.8848 (3) | 0.0617 (12) | |
H7 | −0.0046 | −0.0344 | 0.8900 | 0.074* | |
O11 | 0.1346 (4) | 0.4193 (2) | 0.7177 (2) | 0.0562 (8) | |
O12 | 0.2733 (5) | 0.5535 (3) | 0.6553 (2) | 0.0748 (11) | |
O13 | 0.0194 (4) | 0.4604 (3) | 0.8654 (2) | 0.0648 (9) | |
H13 | 0.0384 | 0.4223 | 0.8193 | 0.078* | |
C11 | 0.1982 (5) | 0.5224 (3) | 0.7164 (3) | 0.0442 (9) | |
C12 | 0.1700 (4) | 0.6045 (3) | 0.7947 (3) | 0.0407 (8) | |
C13 | 0.0823 (5) | 0.5701 (4) | 0.8645 (3) | 0.0467 (10) | |
C14 | 0.0580 (6) | 0.6490 (5) | 0.9356 (3) | 0.0645 (13) | |
H14 | −0.0014 | 0.6260 | 0.9817 | 0.077* | |
C15 | 0.1213 (7) | 0.7609 (5) | 0.9381 (3) | 0.0740 (16) | |
H15 | 0.1056 | 0.8132 | 0.9863 | 0.089* | |
C16 | 0.2082 (6) | 0.7965 (4) | 0.8697 (4) | 0.0696 (14) | |
H16 | 0.2503 | 0.8726 | 0.8715 | 0.083* | |
C17 | 0.2322 (6) | 0.7187 (4) | 0.7989 (3) | 0.0558 (11) | |
H17 | 0.2911 | 0.7428 | 0.7530 | 0.067* | |
N21 | 0.2855 (4) | 0.0894 (3) | 0.6089 (3) | 0.0526 (9) | |
C22 | 0.3627 (6) | 0.0235 (5) | 0.6465 (4) | 0.0751 (15) | |
H22 | 0.3981 | 0.0448 | 0.7071 | 0.090* | |
C23 | 0.3936 (7) | −0.0744 (5) | 0.6013 (6) | 0.090 (2) | |
H23 | 0.4506 | −0.1174 | 0.6294 | 0.108* | |
C24 | 0.3379 (8) | −0.1058 (5) | 0.5145 (6) | 0.098 (2) | |
H24 | 0.3548 | −0.1727 | 0.4824 | 0.118* | |
C27 | −0.0004 (7) | 0.1813 (6) | 0.3642 (4) | 0.0818 (17) | |
H27 | −0.0448 | 0.1652 | 0.3053 | 0.098* | |
C28 | −0.0146 (6) | 0.2783 (5) | 0.4192 (4) | 0.0712 (15) | |
H28 | −0.0696 | 0.3282 | 0.3991 | 0.085* | |
C29 | 0.0553 (6) | 0.2984 (4) | 0.5045 (3) | 0.0605 (12) | |
H29 | 0.0483 | 0.3645 | 0.5419 | 0.073* | |
N30 | 0.1333 (4) | 0.2278 (3) | 0.5370 (2) | 0.0472 (8) | |
C31 | 0.1458 (5) | 0.1334 (4) | 0.4834 (3) | 0.0496 (10) | |
C26 | 0.0791 (6) | 0.1089 (5) | 0.3964 (3) | 0.0727 (15) | |
H26 | 0.0884 | 0.0430 | 0.3596 | 0.087* | |
C25 | 0.2571 (7) | −0.0412 (4) | 0.4727 (4) | 0.0771 (16) | |
H25 | 0.2196 | −0.0629 | 0.4126 | 0.092* | |
C32 | 0.2323 (5) | 0.0582 (4) | 0.5224 (3) | 0.0512 (10) | |
N41 | 0.4715 (4) | 0.3495 (3) | 0.6612 (2) | 0.0459 (8) | |
C42 | 0.5095 (5) | 0.3697 (4) | 0.5786 (3) | 0.0547 (11) | |
H42 | 0.4367 | 0.3481 | 0.5306 | 0.066* | |
C43 | 0.6514 (6) | 0.4210 (4) | 0.5607 (4) | 0.0664 (13) | |
H43 | 0.6740 | 0.4356 | 0.5025 | 0.080* | |
C44 | 0.7574 (6) | 0.4497 (5) | 0.6315 (4) | 0.0779 (16) | |
H44 | 0.8550 | 0.4831 | 0.6219 | 0.094* | |
C47 | 0.5660 (7) | 0.3693 (5) | 0.9829 (4) | 0.0762 (16) | |
H47 | 0.6298 | 0.3856 | 1.0353 | 0.091* | |
C48 | 0.4174 (7) | 0.3288 (5) | 0.9872 (3) | 0.0740 (16) | |
H48 | 0.3772 | 0.3186 | 1.0427 | 0.089* | |
C49 | 0.3281 (7) | 0.3034 (5) | 0.9085 (3) | 0.0741 (16) | |
H49 | 0.2265 | 0.2752 | 0.9118 | 0.089* | |
N50 | 0.3790 (4) | 0.3170 (3) | 0.8270 (2) | 0.0545 (9) | |
C51 | 0.5237 (5) | 0.3598 (4) | 0.8221 (3) | 0.0482 (10) | |
C46 | 0.6214 (6) | 0.3861 (5) | 0.8992 (3) | 0.0665 (13) | |
H46 | 0.7227 | 0.4146 | 0.8949 | 0.080* | |
C45 | 0.7201 (5) | 0.4292 (5) | 0.7171 (4) | 0.0704 (14) | |
H45 | 0.7922 | 0.4481 | 0.7655 | 0.084* | |
C52 | 0.5742 (4) | 0.3801 (3) | 0.7306 (3) | 0.0447 (9) | |
O61 | 0.5469 (6) | 0.7016 (4) | 0.6474 (3) | 0.1025 (14) | |
H61 | 0.4652 | 0.6606 | 0.6503 | 0.123* | |
C62 | 0.6266 (9) | 0.7191 (6) | 0.7309 (5) | 0.110 (2) | |
H62A | 0.6469 | 0.7982 | 0.7543 | 0.165* | |
H62B | 0.7195 | 0.6937 | 0.7239 | 0.165* | |
H62C | 0.5689 | 0.6777 | 0.7724 | 0.165* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cd1 | 0.04206 (16) | 0.04538 (17) | 0.03578 (14) | 0.00416 (11) | −0.00069 (11) | 0.00118 (11) |
O1 | 0.169 (5) | 0.061 (2) | 0.080 (3) | −0.021 (3) | 0.061 (3) | 0.007 (2) |
O2 | 0.071 (3) | 0.145 (5) | 0.090 (3) | −0.034 (3) | 0.022 (3) | −0.014 (3) |
O3 | 0.140 (4) | 0.085 (3) | 0.078 (3) | 0.044 (3) | 0.019 (3) | 0.031 (2) |
C1 | 0.095 (5) | 0.069 (4) | 0.054 (3) | −0.033 (3) | 0.029 (3) | −0.022 (3) |
C2 | 0.061 (3) | 0.045 (2) | 0.039 (2) | −0.011 (2) | 0.014 (2) | −0.0069 (18) |
C3 | 0.081 (3) | 0.044 (2) | 0.044 (2) | 0.011 (2) | 0.006 (2) | −0.0001 (19) |
C4 | 0.055 (3) | 0.085 (4) | 0.065 (3) | 0.013 (3) | 0.010 (2) | 0.006 (3) |
C5 | 0.064 (3) | 0.081 (4) | 0.062 (3) | −0.003 (3) | 0.021 (3) | 0.015 (3) |
C6 | 0.082 (4) | 0.068 (3) | 0.064 (3) | 0.008 (3) | 0.004 (3) | 0.019 (3) |
C7 | 0.058 (3) | 0.067 (3) | 0.056 (3) | 0.007 (2) | 0.000 (2) | 0.002 (2) |
O11 | 0.0567 (19) | 0.0455 (17) | 0.0627 (19) | 0.0080 (14) | 0.0092 (15) | −0.0037 (14) |
O12 | 0.111 (3) | 0.062 (2) | 0.052 (2) | 0.015 (2) | 0.034 (2) | 0.0050 (16) |
O13 | 0.061 (2) | 0.069 (2) | 0.061 (2) | 0.0034 (17) | 0.0169 (16) | 0.0076 (17) |
C11 | 0.052 (2) | 0.043 (2) | 0.037 (2) | 0.0111 (18) | −0.0021 (18) | 0.0018 (17) |
C12 | 0.044 (2) | 0.042 (2) | 0.0356 (19) | 0.0112 (17) | −0.0067 (16) | 0.0019 (16) |
C13 | 0.040 (2) | 0.058 (3) | 0.042 (2) | 0.0124 (19) | −0.0037 (17) | 0.0044 (19) |
C14 | 0.068 (3) | 0.086 (4) | 0.042 (2) | 0.028 (3) | 0.009 (2) | −0.001 (2) |
C15 | 0.096 (4) | 0.080 (4) | 0.048 (3) | 0.041 (3) | −0.003 (3) | −0.016 (3) |
C16 | 0.076 (4) | 0.050 (3) | 0.076 (3) | 0.012 (2) | −0.006 (3) | −0.012 (2) |
C17 | 0.066 (3) | 0.048 (3) | 0.053 (3) | 0.013 (2) | 0.004 (2) | 0.004 (2) |
N21 | 0.052 (2) | 0.048 (2) | 0.059 (2) | 0.0140 (17) | 0.0044 (18) | 0.0080 (17) |
C22 | 0.067 (3) | 0.071 (4) | 0.094 (4) | 0.019 (3) | 0.012 (3) | 0.027 (3) |
C23 | 0.073 (4) | 0.065 (4) | 0.148 (7) | 0.029 (3) | 0.028 (4) | 0.041 (4) |
C24 | 0.090 (5) | 0.055 (3) | 0.154 (7) | 0.026 (3) | 0.048 (5) | 0.001 (4) |
C27 | 0.080 (4) | 0.109 (5) | 0.047 (3) | 0.007 (4) | −0.018 (3) | 0.001 (3) |
C28 | 0.067 (3) | 0.087 (4) | 0.059 (3) | 0.007 (3) | −0.012 (3) | 0.024 (3) |
C29 | 0.065 (3) | 0.064 (3) | 0.052 (3) | 0.016 (2) | −0.009 (2) | 0.006 (2) |
N30 | 0.048 (2) | 0.049 (2) | 0.0397 (18) | 0.0045 (16) | −0.0023 (15) | −0.0026 (15) |
C31 | 0.047 (2) | 0.051 (2) | 0.042 (2) | −0.0027 (19) | 0.0040 (18) | −0.0054 (18) |
C26 | 0.080 (4) | 0.079 (4) | 0.044 (3) | 0.000 (3) | −0.008 (2) | −0.017 (2) |
C25 | 0.083 (4) | 0.055 (3) | 0.086 (4) | 0.011 (3) | 0.022 (3) | −0.015 (3) |
C32 | 0.045 (2) | 0.045 (2) | 0.059 (3) | 0.0016 (18) | 0.009 (2) | −0.003 (2) |
N41 | 0.0443 (19) | 0.048 (2) | 0.0446 (19) | 0.0089 (15) | 0.0057 (15) | 0.0040 (15) |
C42 | 0.057 (3) | 0.061 (3) | 0.047 (2) | 0.010 (2) | 0.008 (2) | 0.008 (2) |
C43 | 0.070 (3) | 0.065 (3) | 0.068 (3) | 0.015 (3) | 0.021 (3) | 0.018 (3) |
C44 | 0.053 (3) | 0.092 (4) | 0.091 (4) | 0.006 (3) | 0.021 (3) | 0.027 (3) |
C47 | 0.081 (4) | 0.089 (4) | 0.052 (3) | 0.011 (3) | −0.028 (3) | 0.003 (3) |
C48 | 0.100 (4) | 0.075 (4) | 0.041 (3) | 0.000 (3) | −0.007 (3) | 0.015 (2) |
C49 | 0.078 (4) | 0.086 (4) | 0.044 (3) | −0.022 (3) | −0.001 (2) | 0.013 (3) |
N50 | 0.057 (2) | 0.060 (2) | 0.0382 (18) | −0.0092 (18) | −0.0053 (16) | 0.0098 (17) |
C51 | 0.046 (2) | 0.045 (2) | 0.051 (2) | 0.0090 (18) | −0.0109 (19) | 0.0029 (19) |
C46 | 0.056 (3) | 0.084 (4) | 0.054 (3) | 0.012 (3) | −0.013 (2) | −0.001 (3) |
C45 | 0.041 (3) | 0.086 (4) | 0.079 (4) | −0.005 (2) | −0.005 (2) | 0.021 (3) |
C52 | 0.037 (2) | 0.044 (2) | 0.053 (2) | 0.0092 (17) | 0.0001 (18) | 0.0048 (18) |
O61 | 0.115 (4) | 0.105 (4) | 0.080 (3) | −0.002 (3) | 0.014 (3) | 0.020 (3) |
C62 | 0.102 (5) | 0.113 (6) | 0.110 (6) | 0.021 (5) | 0.004 (5) | 0.001 (5) |
Cd1—O11 | 2.305 (3) | C23—H23 | 0.9300 |
Cd1—N30 | 2.352 (3) | C24—C25 | 1.365 (9) |
Cd1—N50 | 2.368 (4) | C24—H24 | 0.9300 |
Cd1—N41 | 2.369 (4) | C27—C26 | 1.365 (8) |
Cd1—N21 | 2.377 (4) | C27—C28 | 1.375 (8) |
Cd1—O1 | 2.391 (5) | C27—H27 | 0.9300 |
Cd1—O2 | 2.685 (5) | C28—C29 | 1.368 (7) |
O1—C1 | 1.253 (8) | C28—H28 | 0.9300 |
O2—C1 | 1.242 (8) | C29—N30 | 1.340 (6) |
O3—C3 | 1.348 (6) | C29—H29 | 0.9300 |
O3—H3 | 0.8200 | N30—C31 | 1.336 (5) |
C1—C2 | 1.507 (7) | C31—C26 | 1.378 (6) |
C2—C3 | 1.377 (7) | C31—C32 | 1.476 (6) |
C2—C7 | 1.380 (7) | C26—H26 | 0.9300 |
C3—C4 | 1.389 (7) | C25—C32 | 1.394 (6) |
C4—C5 | 1.369 (7) | C25—H25 | 0.9300 |
C4—H4 | 0.9300 | N41—C52 | 1.330 (5) |
C5—C6 | 1.364 (8) | N41—C42 | 1.333 (5) |
C5—H5 | 0.9300 | C42—C43 | 1.378 (7) |
C6—C7 | 1.360 (7) | C42—H42 | 0.9300 |
C6—H6 | 0.9300 | C43—C44 | 1.363 (8) |
C7—H7 | 0.9300 | C43—H43 | 0.9300 |
O11—C11 | 1.283 (5) | C44—C45 | 1.374 (8) |
O12—C11 | 1.217 (5) | C44—H44 | 0.9300 |
O13—C13 | 1.353 (5) | C47—C48 | 1.358 (8) |
O13—H13 | 0.8200 | C47—C46 | 1.388 (7) |
C11—C12 | 1.497 (5) | C47—H47 | 0.9300 |
C12—C17 | 1.391 (6) | C48—C49 | 1.364 (7) |
C12—C13 | 1.395 (6) | C48—H48 | 0.9300 |
C13—C14 | 1.387 (6) | C49—N50 | 1.335 (6) |
C14—C15 | 1.371 (8) | C49—H49 | 0.9300 |
C14—H14 | 0.9300 | N50—C51 | 1.332 (6) |
C15—C16 | 1.379 (8) | C51—C46 | 1.387 (6) |
C15—H15 | 0.9300 | C51—C52 | 1.492 (6) |
C16—C17 | 1.375 (6) | C46—H46 | 0.9300 |
C16—H16 | 0.9300 | C45—C52 | 1.384 (6) |
C17—H17 | 0.9300 | C45—H45 | 0.9300 |
N21—C22 | 1.326 (6) | O61—C62 | 1.384 (8) |
N21—C32 | 1.337 (6) | O61—H61 | 0.8200 |
C22—C23 | 1.374 (8) | C62—H62A | 0.9600 |
C22—H22 | 0.9300 | C62—H62B | 0.9600 |
C23—C24 | 1.347 (10) | C62—H62C | 0.9600 |
O11—Cd1—N30 | 90.83 (12) | C24—C23—C22 | 117.4 (6) |
O11—Cd1—N50 | 87.64 (13) | C24—C23—H23 | 121.3 |
N30—Cd1—N50 | 164.41 (12) | C22—C23—H23 | 121.3 |
O11—Cd1—N41 | 95.01 (12) | C23—C24—C25 | 121.1 (6) |
N30—Cd1—N41 | 95.40 (12) | C23—C24—H24 | 119.5 |
N50—Cd1—N41 | 69.31 (12) | C25—C24—H24 | 119.5 |
O11—Cd1—N21 | 159.80 (13) | C26—C27—C28 | 119.7 (5) |
N30—Cd1—N21 | 68.98 (13) | C26—C27—H27 | 120.2 |
N50—Cd1—N21 | 111.80 (14) | C28—C27—H27 | 120.2 |
N41—Cd1—N21 | 87.26 (13) | C29—C28—C27 | 117.5 (5) |
O11—Cd1—O1 | 76.61 (14) | C29—C28—H28 | 121.2 |
N30—Cd1—O1 | 89.34 (15) | C27—C28—H28 | 121.2 |
N50—Cd1—O1 | 105.36 (15) | N30—C29—C28 | 123.3 (5) |
N41—Cd1—O1 | 170.46 (12) | N30—C29—H29 | 118.4 |
N21—Cd1—O1 | 102.18 (14) | C28—C29—H29 | 118.4 |
O11—Cd1—O2 | 116.15 (14) | C31—N30—C29 | 118.9 (4) |
N30—Cd1—O2 | 117.82 (13) | C31—N30—Cd1 | 119.0 (3) |
N50—Cd1—O2 | 76.51 (13) | C29—N30—Cd1 | 121.8 (3) |
N41—Cd1—O2 | 132.29 (14) | N30—C31—C26 | 120.6 (5) |
N21—Cd1—O2 | 75.45 (14) | N30—C31—C32 | 116.8 (4) |
O1—Cd1—O2 | 50.73 (17) | C26—C31—C32 | 122.6 (4) |
C1—O1—Cd1 | 100.0 (5) | C27—C26—C31 | 120.1 (5) |
C1—O2—Cd1 | 86.3 (4) | C27—C26—H26 | 120.0 |
C3—O3—H3 | 109.5 | C31—C26—H26 | 120.0 |
O2—C1—O1 | 122.8 (6) | C24—C25—C32 | 118.4 (6) |
O2—C1—C2 | 120.3 (7) | C24—C25—H25 | 120.8 |
O1—C1—C2 | 116.9 (7) | C32—C25—H25 | 120.8 |
C3—C2—C7 | 119.3 (4) | N21—C32—C25 | 120.9 (5) |
C3—C2—C1 | 121.9 (5) | N21—C32—C31 | 116.6 (4) |
C7—C2—C1 | 118.7 (5) | C25—C32—C31 | 122.4 (5) |
O3—C3—C2 | 122.0 (5) | C52—N41—C42 | 119.2 (4) |
O3—C3—C4 | 118.2 (5) | C52—N41—Cd1 | 118.3 (3) |
C2—C3—C4 | 119.8 (5) | C42—N41—Cd1 | 122.5 (3) |
C5—C4—C3 | 119.3 (5) | N41—C42—C43 | 123.2 (5) |
C5—C4—H4 | 120.3 | N41—C42—H42 | 118.4 |
C3—C4—H4 | 120.3 | C43—C42—H42 | 118.4 |
C6—C5—C4 | 121.0 (5) | C44—C43—C42 | 117.5 (5) |
C6—C5—H5 | 119.5 | C44—C43—H43 | 121.2 |
C4—C5—H5 | 119.5 | C42—C43—H43 | 121.2 |
C7—C6—C5 | 119.6 (5) | C43—C44—C45 | 120.0 (5) |
C7—C6—H6 | 120.2 | C43—C44—H44 | 120.0 |
C5—C6—H6 | 120.2 | C45—C44—H44 | 120.0 |
C6—C7—C2 | 120.9 (5) | C48—C47—C46 | 119.1 (5) |
C6—C7—H7 | 119.5 | C48—C47—H47 | 120.4 |
C2—C7—H7 | 119.5 | C46—C47—H47 | 120.4 |
C11—O11—Cd1 | 130.0 (3) | C47—C48—C49 | 118.6 (5) |
C13—O13—H13 | 109.5 | C47—C48—H48 | 120.7 |
O12—C11—O11 | 123.5 (4) | C49—C48—H48 | 120.7 |
O12—C11—C12 | 121.3 (4) | N50—C49—C48 | 123.5 (5) |
O11—C11—C12 | 115.2 (4) | N50—C49—H49 | 118.3 |
C17—C12—C13 | 118.5 (4) | C48—C49—H49 | 118.3 |
C17—C12—C11 | 119.7 (4) | C51—N50—C49 | 118.5 (4) |
C13—C12—C11 | 121.9 (4) | C51—N50—Cd1 | 118.1 (3) |
O13—C13—C14 | 118.1 (4) | C49—N50—Cd1 | 123.3 (3) |
O13—C13—C12 | 121.7 (4) | N50—C51—C46 | 121.1 (4) |
C14—C13—C12 | 120.1 (4) | N50—C51—C52 | 116.9 (4) |
C15—C14—C13 | 120.0 (5) | C46—C51—C52 | 122.0 (4) |
C15—C14—H14 | 120.0 | C47—C46—C51 | 119.1 (5) |
C13—C14—H14 | 120.0 | C47—C46—H46 | 120.5 |
C14—C15—C16 | 120.7 (4) | C51—C46—H46 | 120.5 |
C14—C15—H15 | 119.7 | C44—C45—C52 | 119.4 (5) |
C16—C15—H15 | 119.7 | C44—C45—H45 | 120.3 |
C17—C16—C15 | 119.5 (5) | C52—C45—H45 | 120.3 |
C17—C16—H16 | 120.3 | N41—C52—C45 | 120.7 (4) |
C15—C16—H16 | 120.3 | N41—C52—C51 | 116.8 (4) |
C16—C17—C12 | 121.2 (5) | C45—C52—C51 | 122.5 (4) |
C16—C17—H17 | 119.4 | C62—O61—H61 | 109.5 |
C12—C17—H17 | 119.4 | O61—C62—H62A | 109.5 |
C22—N21—C32 | 118.4 (4) | O61—C62—H62B | 109.5 |
C22—N21—Cd1 | 123.3 (4) | H62A—C62—H62B | 109.5 |
C32—N21—Cd1 | 118.3 (3) | O61—C62—H62C | 109.5 |
N21—C22—C23 | 123.7 (6) | H62A—C62—H62C | 109.5 |
N21—C22—H22 | 118.1 | H62B—C62—H62C | 109.5 |
C23—C22—H22 | 118.1 | ||
O2—C1—C2—C3 | 179.3 (5) | Cd1—O12—C11—C12 | 158.7 (5) |
O1—C1—C2—C3 | −1.5 (7) | Cd1—O11—C11—C12 | −135.3 (3) |
O2—C1—C2—C7 | 1.5 (7) | C11—C12—C13—O13 | 0.7 (6) |
O1—C1—C2—C7 | −179.4 (4) | Cd1—N30—C29—C28 | −173.1 (4) |
Cd1—O2—C1—C2 | −177.0 (4) | Cd1—N30—C31—C32 | −5.6 (5) |
Cd1—O1—C1—C2 | 176.4 (3) | Cd1—N30—C31—C26 | 173.9 (4) |
C1—C2—C3—O3 | 3.1 (7) | Cd1—N21—C22—C23 | 178.6 (4) |
O12—C11—C12—C13 | 179.0 (4) | Cd1—N21—C32—C31 | 1.9 (5) |
O11—C11—C12—C13 | 0.9 (6) | Cd1—N50—C51—C52 | 8.0 (5) |
O12—C11—C12—C17 | −1.0 (6) | Cd1—N21—C32—C25 | −177.6 (4) |
O11—C11—C12—C17 | −179.1 (4) |
Cg1 and Cg2 are the centroids of the C2–C7 and C12–C17 rings, respectively. |
D—H···A | D—H | H···A | D···A | D—H···A |
O3—H3···O1 | 0.82 | 1.82 | 2.545 (7) | 147 |
O13—H13···O11 | 0.82 | 1.78 | 2.505 (4) | 147 |
O61—H61···O12 | 0.82 | 1.98 | 2.802 (6) | 177 |
C23—H23···O61i | 0.93 | 2.57 | 3.429 (8) | 154 |
C43—H43···O12ii | 0.93 | 2.43 | 3.356 (6) | 172 |
C45—H45···O13iii | 0.93 | 2.47 | 3.370 (6) | 163 |
C15—H15···Cg1iv | 0.93 | 2.81 | 3.620 (6) | 147 |
C47—H47···Cg2v | 0.93 | 2.79 | 3.589 (6) | 145 |
C62—H62A···Cg1vi | 0.96 | 2.94 | 3.858 (8) | 160 |
Symmetry codes: (i) x, y−1, z; (ii) −x+1, −y+1, −z+1; (iii) x+1, y, z; (iv) −x, −y+1, −z+2; (v) −x+1, −y+1, −z+2; (vi) x+1, y+1, z. |
Experimental details
Crystal data | |
Chemical formula | [Cd(C7H5O3)2(C10H8N2)2]·CH4O |
Mr | 731.03 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 293 |
a, b, c (Å) | 9.115 (4), 12.189 (2), 14.883 (2) |
α, β, γ (°) | 97.64 (1), 92.30 (3), 101.00 (3) |
V (Å3) | 1605.1 (8) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.74 |
Crystal size (mm) | 0.40 × 0.18 × 0.13 |
Data collection | |
Diffractometer | Enraf–Nonius CAD-4 |
Absorption correction | – |
No. of measured, independent and observed [I > 2σ(I)] reflections | 9433, 9117, 4943 |
Rint | 0.040 |
(sin θ/λ)max (Å−1) | 0.703 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.048, 0.138, 0.97 |
No. of reflections | 9117 |
No. of parameters | 423 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.37, −0.85 |
Computer programs: CAD-4 EXPRESS (Enraf–Nonius, 1994), XCAD4 (Harms & Wocadlo, 1995), SIR92 (Altomare et al., 1994), SHELXL97 (Sheldrick, 2008), CAMERON (Watkin et al., 1996), WinGX (Version 1.63.02; Farrugia, 1999).
Cg1 and Cg2 are the centroids of the C2–C7 and C12–C17 rings, respectively. |
D—H···A | D—H | H···A | D···A | D—H···A |
O3—H3···O1 | 0.82 | 1.82 | 2.545 (7) | 146.5 |
O13—H13···O11 | 0.82 | 1.78 | 2.505 (4) | 147.0 |
O61—H61···O12 | 0.82 | 1.98 | 2.802 (6) | 176.5 |
C23—H23···O61i | 0.93 | 2.57 | 3.429 (8) | 154.3 |
C43—H43···O12ii | 0.93 | 2.43 | 3.356 (6) | 172.3 |
C45—H45···O13iii | 0.93 | 2.47 | 3.370 (6) | 163.3 |
C15—H15···Cg1iv | 0.93 | 2.81 | 3.620 (6) | 147 |
C47—H47···Cg2v | 0.93 | 2.79 | 3.589 (6) | 145 |
C62—H62A···Cg1vi | 0.96 | 2.94 | 3.858 (8) | 160 |
Symmetry codes: (i) x, y−1, z; (ii) −x+1, −y+1, −z+1; (iii) x+1, y, z; (iv) −x, −y+1, −z+2; (v) −x+1, −y+1, −z+2; (vi) x+1, y+1, z. |
References
Altomare, A., Cascarano, G., Giacovazzo, C., Guagliardi, A., Burla, M. C., Polidori, G. & Camalli, M. (1994). J. Appl. Cryst. 27, 435. CrossRef Web of Science IUCr Journals Google Scholar
Enraf–Nonius (1994). CAD-4 EXPRESS. Enraf–Nonius, Delft, The Netherlands. Google Scholar
Farrugia, L. J. (1999). J. Appl. Cryst. 32, 837–838. CrossRef CAS IUCr Journals Google Scholar
Harms, K. & Wocadlo, S. (1995). XCAD4. University of Marburg, Germany. Google Scholar
Lemoine, P., Viossat, B., Nguyen-Huy, D., Tomas, A., Morgant, G., Greenaway, F. T. & Sorenson, J. R. J. (2004). J. Inorg. Biochem. 98, 1734–1749. Web of Science CSD CrossRef PubMed CAS Google Scholar
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Recently we described the crystal structure of bis(3,5-diisopropylsalicylato)(2,9-dimethyl-1,10-phenanthroline)cadmium(II) complex (Tomas et al., 2006) as an extension of an ongoing crystal structure investigation of non-steroidal anti-inflammatory drug zinc carboxylate complexes. Zinc is an essential metalloelement required by all cells for activation of a large number of Zn-dependent enzymes (Sorenson, 2002 and references therein). Various zinc carboxylates exhibit favorable anti-inflammatory, analgesic and antipyretic properties. In previous work, we have synthesized and structurally characterized two ternary complexes of Zn(II) with 3,5-diisopropylsalicylate and 1,10-phenanthroline or 2,9-dimethyl-1,10-phenanthroline (Lemoine et al., 2004). Anticonvulsant and rotorod toxicity activities of these complexes were determined to examine structure-anticonvulsant and structure-hypnotic activities of these Zn(II) non- steroidal antiinflammatory agent complexes. Since zinc and cadmium belong to the same group 12 of the periodic system of elements, following this work, we report in this paper the synthesis and the structure of the bis(2,2'-bipyridyl- κ2N,N')(salicylato-κ2O,O')(salicylato-κO)cadmium(II) methanol solvate.
The title compound contains one monomeric seven- coordinate cadmium complex and one methanol solvate molecule. CdII is coordinate-covalently bonded to two 2,2'-bipyridyl bidendate ligands via N21 and N30 or N41 and N50 atoms and to two salicylate (Hsal-) anionic ligands, one of which is monodentate via O11 atom and the other is bidentate via O1 and O2 atoms (Fig. 1). Therefore, the cadmium atom exhibits a {6 + 1} environment, approximately described as a distorted capped octahedron. According to this description, the Cd atom lies 0.127 (2) Å out of the basal plane [O1, N30, N41, N50] with the apical positions occupied by N21 and O11. The O2 atom caps the triangular face formed by O1, N21 and N50. This very irregular geometry is imposed by the small bite angles of one salicylate [O1—Cd—O2, 50.7 (2)°] and the two bipyridyl [N21—Cd—N30, 69.0 (1) °; N41—Cd—N50, 69.3 (1) °] bidentate ligands, mainly due to the rigidity of these chelate molecules. The Cd—N bond lengths are very similar [average 2.367 (4) Å] and comparable with distances found in other bipyridine containing Cd complexes (Turner et al., 1982). The distances between Cd and the oxygen atoms are the following: d(Cd—O1) = 2.391 (5) Å and d(Cd—O2) = 2.685 (5) Å for the first salicylate ligand and d(Cd—O11) = 2.305 (3) Å for the second ligand. The longer Cd—O2 distance is comparable to that described in the bis(salicylato)(2,2'-bipyridyl) (dimethylformamide)cadmium(II) (Mazurier et al., 2000) in a (6 + 1) environment (2.667 Å). The bond lengths and angles of the complexed salicylate ligands and 2,2'-bipyridyl are normal. The chelation of CdII by the Hsal- ligand leads to planar ring, P1 (O1/C1/O2/Cd) with the maximum deviation of 0.026 (4) Å for C1 atom. The phenyl mean planes P2 [C2—C7] and P3 [C12—C17] [maximum deviation of 0.003 (4) Å for C7] in the salicylate ligands make a dihedral 70.5 (2) °. The bipyridyl ligands are essentially planar (maximum deviation of 0.067 (5) Å for C48) and the CdII atom is displaced from the least-squares planes P4 [N21/C22- C29/N30/C31—C32] by 0.139 (5) Å and from P5 [N41/C42- C49/N50/C51—C52] by 0.251 (5) Å. The dihedral angles between planes P4 and P5 is 82.1 (1) °.
The hydroxy H3 (or H13) atom attached to O3 (or O13) is involved in intramolecular via O1 (or O11) atom (Table 1) thus contributing to planarity of the rings [O1 C1 C2 C3 O3 H3 and O11 C11 C12 C13 O13 H13] (maximum deviation of 0.022 (2) Å for H3). There is one intermolecular hydrogen bonding interaction involving the solvate methanol molecule and the carboxylate O12 atom (Table 1).
Moreover, the packing is governed by π - π stacking interactions which occur between bipyridyl ligands [N21/C22—C25/C32 and N30/C26—C29/C31] through inversion centre at (1/2, 1/2, 1/2) with a centroid-to-centroid distance of 3.783 (4) Å, an average spacing of 3.50 Å with an offset of 22.1°. In addition, there are three C—H···O interactions (Table 1) and three C– H···Cg(π-ring) interactions (Table 1, Cg1 being the centroid of the ring C2 to C7 and Cg2 the centroid of the ring C12 to C17).