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catena-Poly[[di­aqua­cadmium(II)]bis­­(μ-2,2-di­methyl­butane­dioato-κ4O,O′:O′′,O′′′)[di­aqua­cadmium(II)]-μ-1,4-bis­­(3-pyridylmeth­yl)piperazine-κ2N3:N3′]

aLyman Briggs College, Department of Chemistry, Michigan State University, East Lansing, MI 48825, USA
*Correspondence e-mail: laduca@msu.edu

(Received 14 May 2010; accepted 19 May 2010; online 26 May 2010)

In the title compound, [Cd2(C6H8O4)2(C16H20N4)(H2O)4]n, penta­gonal-bipyramidally coordinated CdII ions are connected into {Cd2(2,2-dimethyl­succinate)2(H2O)4} centrosymmetric dimeric clusters. In turn, these clusters are linked by tethering 1,4-bis­(3-pyridylmeth­yl)piperazine (3-bpmp) ligands into [Cd2(2,2-dimethyl­succinate)2(3-bpmp)(H2O)4]n coordination polymer chains. The chain motifs are oriented parallel to [1[\overline{1}]0]. Individual chains are connected into supra­molecular layers via O—H⋯N and O—H⋯O hydrogen-bonding mechanisms.

Related literature

For other dicarboxyl­ate coordination polymers containing 3-bpmp ligands, see: Johnston et al. (2008[Johnston, L. L., Martin, D. P., Supkowski, R. M. & LaDuca, R. L. (2008). Inorg. Chim. Acta, 361, 2887-2894.]). For the preparation of 3-bpmp, see: Niu et al. (2001[Niu, Y., Hou, H., Wei, Y., Fan, Y., Zhu, Y., Du, C. & Xin, X. (2001). Inorg. Chem. Commun. 4, 358-361.]).

[Scheme 1]

Experimental

Crystal data
  • [Cd2(C6H8O4)2(C16H20N4)(H2O)4]

  • Mr = 426.74

  • Triclinic, [P \overline 1]

  • a = 9.275 (3) Å

  • b = 10.378 (3) Å

  • c = 10.625 (5) Å

  • α = 114.461 (3)°

  • β = 101.274 (3)°

  • γ = 106.687 (2)°

  • V = 831.6 (5) Å3

  • Z = 2

  • Mo Kα radiation

  • μ = 1.34 mm−1

  • T = 173 K

  • 0.26 × 0.18 × 0.13 mm

Data collection
  • Bruker APEXII diffractometer

  • Absorption correction: multi-scan (SADABS; Sheldrick, 1996[Sheldrick, G. M. (1996). SADABS, University of Göttingen, Germany.]) Tmin = 0.723, Tmax = 0.840

  • 12027 measured reflections

  • 3047 independent reflections

  • 2909 reflections with I > 2σ(I)

  • Rint = 0.058

Refinement
  • R[F2 > 2σ(F2)] = 0.035

  • wR(F2) = 0.099

  • S = 1.16

  • 3047 reflections

  • 222 parameters

  • 6 restraints

  • H atoms treated by a mixture of independent and constrained refinement

  • Δρmax = 0.65 e Å−3

  • Δρmin = −1.07 e Å−3

Table 1
Hydrogen-bond geometry (Å, °)

D—H⋯A D—H H⋯A DA D—H⋯A
O5—H5C⋯O4 0.84 (4) 1.93 (2) 2.705 (3) 154 (4)
O5—H5D⋯O1i 0.83 (2) 1.99 (2) 2.744 (3) 152 (3)
O6—H6C⋯O3ii 0.85 (2) 1.84 (2) 2.679 (3) 171 (4)
O6—H6D⋯N2iii 0.83 (2) 2.03 (2) 2.851 (4) 173 (4)
Symmetry codes: (i) -x, -y+1, -z+1; (ii) x+1, y, z; (iii) -x+1, -y+1, -z+1.

Data collection: APEX2 (Bruker, 2006[Bruker (2006). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.]); cell refinement: SAINT (Bruker, 2006[Bruker (2006). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.]); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]); molecular graphics: CrystalMaker (Palmer, 2007[Palmer, D. (2007). CrystalMaker. CrystalMaker Software, Bicester, England.]); software used to prepare material for publication: SHELXL97.

Supporting information


Comment top

Recently we have been investigating bis(3-pyridylmethyl)piperazine (3-bpmp) as a neutral dipodal tethering ligand for the construction of divalent metal coordination polymers in tandem with aromatic dicarboxylate ligands (Johnston et al., 2008). This chemistry has been extended into an aliphatic dicarboxylate system with the synthesis of the title compound.

The asymmetric unit of the title compound contains a CdII ion, one 2,2-dimethylsuccinate ligand, two aqua ligands, and one-half of a 3-bpmp ligand whose central piperazinyl ring is situated over a crystallographic inversion centre. The CdII ion is pentagonal bipyramidally coordinated in a {CdO6N} environment, with its apical positions occupied by aqua ligands. Its basal plane consists of two chelating carboxylate groups from two 2,2-dimethylsuccinate ligands and one pyridyl N donor atom from a 3-bpmp ligand. A pair of CdII ions is aggregated into a centrosymmetric {Cd2(H2O)4(2,2-dimethylsuccinate)2} dinuclear cluster (Fig. 1) by two bis(chelating) 2,2-dimethylsuccinate ligands, which adopt a gauche conformation.

{Cd2(H2O)4(2,2-dimethylsuccinate)2} dinuclear clusters are connected by tethering 3-bpmp ligands into one-dimensional [Cd2(2,2-dimethylsuccinate)2(H2O)4(3-bpmp)]n coordination polymer chains, which are oriented parallel to the (1 1 0) crystal direction (Fig. 2). The through-ligand Cd···Cd contact distance is 13.381 (6) Å. Individual chains are connected into supramolecular pseudo layers (Fig. 3) via O—H···N and O—H···O interactions (Table 1). Within the pseudo layers, aqua ligands (O6) donate hydrogen bonds to piperazinyl N atoms of 3-bpmp ligands and ligated 2,2-dimethylsuccinate carboxylate O atoms in neighboring chains. Neighboring pseudo layers stack into the three-dimensional crystal structure (Fig. 4) of the title compound by crystal packing forces.

Related literature top

For other dicarboxylate coordination polymers containing 3-bpmp ligands, see: Johnston et al. (2008). For the preparation of 3-bpmp, see: Niu et al. (2001).

Experimental top

All starting materials were obtained commercially, except for 3-bpmp, which was prepared by a published procedure (Niu et al., 2001). A mixture of cadmium nitrate tetrahydrate (114 mg, 0.37 mmol), 2,2-dimethylsuccinic acid (54 mg, 0.37 mmol), 3-bpmp (199 mg, 0.742 mmol) and 10.0 g water (550 mmol) was placed into a 23 ml Teflon-lined Parr acid digestion bomb, which was then heated under autogenous pressure at 393 K for 72 h. Colourless blocks of the title compound (57 mg, 26% yield) were isolated after washing with distilled water and acetone, and drying in air.

Refinement top

All H atoms bound to C atoms were placed in calculated positions, with C—H = 0.95 Å, and refined in riding mode with Uiso = 1.2Ueq(C). The H atoms bound to the aqua ligand O atom were found in a difference Fourier map, restrained with with O—H = 0.85 Å and refined with Uiso = 1.2Ueq(O).

Structure description top

Recently we have been investigating bis(3-pyridylmethyl)piperazine (3-bpmp) as a neutral dipodal tethering ligand for the construction of divalent metal coordination polymers in tandem with aromatic dicarboxylate ligands (Johnston et al., 2008). This chemistry has been extended into an aliphatic dicarboxylate system with the synthesis of the title compound.

The asymmetric unit of the title compound contains a CdII ion, one 2,2-dimethylsuccinate ligand, two aqua ligands, and one-half of a 3-bpmp ligand whose central piperazinyl ring is situated over a crystallographic inversion centre. The CdII ion is pentagonal bipyramidally coordinated in a {CdO6N} environment, with its apical positions occupied by aqua ligands. Its basal plane consists of two chelating carboxylate groups from two 2,2-dimethylsuccinate ligands and one pyridyl N donor atom from a 3-bpmp ligand. A pair of CdII ions is aggregated into a centrosymmetric {Cd2(H2O)4(2,2-dimethylsuccinate)2} dinuclear cluster (Fig. 1) by two bis(chelating) 2,2-dimethylsuccinate ligands, which adopt a gauche conformation.

{Cd2(H2O)4(2,2-dimethylsuccinate)2} dinuclear clusters are connected by tethering 3-bpmp ligands into one-dimensional [Cd2(2,2-dimethylsuccinate)2(H2O)4(3-bpmp)]n coordination polymer chains, which are oriented parallel to the (1 1 0) crystal direction (Fig. 2). The through-ligand Cd···Cd contact distance is 13.381 (6) Å. Individual chains are connected into supramolecular pseudo layers (Fig. 3) via O—H···N and O—H···O interactions (Table 1). Within the pseudo layers, aqua ligands (O6) donate hydrogen bonds to piperazinyl N atoms of 3-bpmp ligands and ligated 2,2-dimethylsuccinate carboxylate O atoms in neighboring chains. Neighboring pseudo layers stack into the three-dimensional crystal structure (Fig. 4) of the title compound by crystal packing forces.

For other dicarboxylate coordination polymers containing 3-bpmp ligands, see: Johnston et al. (2008). For the preparation of 3-bpmp, see: Niu et al. (2001).

Computing details top

Data collection: APEX2 (Bruker, 2006); cell refinement: SAINT (Bruker, 2006); data reduction: SAINT (Bruker, 2006); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: CrystalMaker (Palmer, 2007); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008).

Figures top
[Figure 1] Fig. 1. The coordination environment and dinuclear cluster of the title compound, showing 50% probability ellipsoids and partial atom numbering scheme. Hydrogen atom positions are shown as grey sticks. Color codes: violet Cd, red O, light blue N, black C. Symmetry code: (i) -x, -y + 1, -z + 1.
[Figure 2] Fig. 2. A single [Cd2(2,2-dimethylsuccinate)2(H2O)4 (3-bpmp)]n coordination polymer chain
[Figure 3] Fig. 3. Supramolecular layer of [Cd2(2,2-dimethylsuccinate)2(H2O)4 (3-bpmp)]n chains. Although the H atoms have been omitted the O—H···N and O—H···O hydrogen bonds are shown as dashed lines between the donor and acceptor atoms.
[Figure 4] Fig. 4. Stacking of supramolecular layers in the title compound.
catena-Poly[[diaquacadmium(II)]bis(µ-2,2-dimethylbutanedioato- κ4O,O':O'',O''')[diaquacadmium(II)]-µ- 1,4-bis(3-pyridylmethyl)piperazine-κ2N3:N3'] top
Crystal data top
[Cd2(C6H8O4)2(C16H20N4)(H2O)4]Z = 2
Mr = 426.74F(000) = 432
Triclinic, P1Dx = 1.704 Mg m3
Hall symbol: -P 1Mo Kα radiation, λ = 0.71073 Å
a = 9.275 (3) ÅCell parameters from 12027 reflections
b = 10.378 (3) Åθ = 2.3–25.4°
c = 10.625 (5) ŵ = 1.34 mm1
α = 114.461 (3)°T = 173 K
β = 101.274 (3)°Block, colourless
γ = 106.687 (2)°0.26 × 0.18 × 0.13 mm
V = 831.6 (5) Å3
Data collection top
Bruker APEXII
diffractometer
3047 independent reflections
Radiation source: fine-focus sealed tube2909 reflections with I > 2σ(I)
Graphite monochromatorRint = 0.058
ωφ scansθmax = 25.4°, θmin = 2.3°
Absorption correction: multi-scan
(SADABS; Sheldrick, 1996)
h = 1111
Tmin = 0.723, Tmax = 0.840k = 1212
12027 measured reflectionsl = 1212
Refinement top
Refinement on F2Primary atom site location: structure-invariant direct methods
Least-squares matrix: fullSecondary atom site location: difference Fourier map
R[F2 > 2σ(F2)] = 0.035Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.099H atoms treated by a mixture of independent and constrained refinement
S = 1.16 w = 1/[σ2(Fo2) + (0.0539P)2 + 0.0373P]
where P = (Fo2 + 2Fc2)/3
3047 reflections(Δ/σ)max < 0.001
222 parametersΔρmax = 0.65 e Å3
6 restraintsΔρmin = 1.07 e Å3
Crystal data top
[Cd2(C6H8O4)2(C16H20N4)(H2O)4]γ = 106.687 (2)°
Mr = 426.74V = 831.6 (5) Å3
Triclinic, P1Z = 2
a = 9.275 (3) ÅMo Kα radiation
b = 10.378 (3) ŵ = 1.34 mm1
c = 10.625 (5) ÅT = 173 K
α = 114.461 (3)°0.26 × 0.18 × 0.13 mm
β = 101.274 (3)°
Data collection top
Bruker APEXII
diffractometer
3047 independent reflections
Absorption correction: multi-scan
(SADABS; Sheldrick, 1996)
2909 reflections with I > 2σ(I)
Tmin = 0.723, Tmax = 0.840Rint = 0.058
12027 measured reflections
Refinement top
R[F2 > 2σ(F2)] = 0.0356 restraints
wR(F2) = 0.099H atoms treated by a mixture of independent and constrained refinement
S = 1.16Δρmax = 0.65 e Å3
3047 reflectionsΔρmin = 1.07 e Å3
222 parameters
Special details top

Experimental. The largest peak of 0.645 e- Å3 was located 0.90 Å from Cd1. The largest hole of -1.065 e- Å3 was located 0.94 Å from Cd1.

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 > 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.

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top
xyzUiso*/Ueq
Cd10.18482 (2)0.45331 (2)0.36199 (2)0.03562 (13)
O10.0456 (2)0.6107 (3)0.3511 (2)0.0425 (5)
O20.0444 (3)0.3806 (3)0.1510 (3)0.0436 (5)
O30.3418 (3)0.5696 (3)0.4297 (3)0.0452 (5)
O40.2497 (3)0.3895 (3)0.3798 (3)0.0423 (5)
O50.0262 (3)0.2695 (3)0.3722 (3)0.0413 (5)
H5C0.098 (4)0.297 (5)0.346 (4)0.050*
H5D0.007 (4)0.295 (4)0.461 (2)0.050*
O60.4016 (3)0.6335 (3)0.3687 (3)0.0389 (5)
H6C0.483 (3)0.611 (4)0.379 (4)0.047*
H6D0.430 (4)0.720 (3)0.441 (3)0.047*
N10.2421 (3)0.2552 (3)0.2065 (3)0.0369 (5)
N20.5008 (3)0.0578 (3)0.3970 (3)0.0367 (5)
C10.1678 (4)0.1796 (4)0.0587 (4)0.0418 (7)
H10.09890.21500.01650.050*
C20.1890 (4)0.0519 (4)0.0333 (4)0.0460 (8)
H20.13540.00050.13760.055*
C30.2875 (4)0.0005 (4)0.0262 (4)0.0435 (7)
H30.29970.09040.03640.052*
C40.3700 (4)0.0788 (4)0.1793 (4)0.0375 (6)
C50.3413 (4)0.2057 (4)0.2633 (4)0.0392 (7)
H50.39560.26090.36770.047*
C60.4891 (4)0.0317 (4)0.2474 (4)0.0405 (7)
H6A0.45880.08010.18100.049*
H6B0.59710.09000.25200.049*
C70.3498 (4)0.0430 (4)0.3945 (4)0.0402 (7)
H7A0.32310.15300.32430.048*
H7B0.26050.01760.35950.048*
C80.6337 (4)0.0216 (4)0.4535 (4)0.0400 (7)
H8A0.73610.09060.45800.048*
H8B0.61260.08710.38460.048*
C90.0570 (4)0.5055 (4)0.2235 (3)0.0373 (7)
C100.2056 (4)0.5280 (4)0.1593 (4)0.0390 (7)
C110.3507 (4)0.4289 (4)0.1793 (3)0.0400 (7)
H11A0.44540.44960.14830.048*
H11B0.37870.31730.11420.048*
C120.3141 (3)0.4641 (4)0.3390 (3)0.0377 (7)
C130.2436 (4)0.4650 (4)0.0073 (4)0.0471 (8)
H13A0.34260.47210.05030.071*
H13B0.25850.35610.05520.071*
H13C0.15400.52640.02280.071*
C140.1754 (4)0.6995 (4)0.2367 (4)0.0478 (8)
H14A0.07810.76010.22920.072*
H14B0.16070.73630.34140.072*
H14C0.26810.71210.18920.072*
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
Cd10.03706 (18)0.03714 (18)0.03548 (19)0.01797 (13)0.01430 (13)0.01828 (14)
O10.0399 (12)0.0476 (12)0.0378 (12)0.0189 (10)0.0107 (10)0.0205 (10)
O20.0480 (13)0.0440 (12)0.0446 (12)0.0250 (10)0.0183 (10)0.0223 (11)
O30.0475 (13)0.0516 (14)0.0391 (12)0.0263 (11)0.0185 (10)0.0197 (11)
O40.0431 (12)0.0469 (12)0.0427 (12)0.0227 (10)0.0174 (10)0.0239 (11)
O50.0441 (13)0.0429 (13)0.0388 (13)0.0205 (11)0.0149 (11)0.0205 (11)
O60.0414 (12)0.0383 (12)0.0373 (13)0.0188 (10)0.0139 (10)0.0177 (11)
N10.0372 (13)0.0380 (13)0.0382 (14)0.0173 (11)0.0150 (11)0.0194 (12)
N20.0397 (13)0.0369 (13)0.0395 (14)0.0181 (11)0.0170 (11)0.0215 (12)
C10.0429 (17)0.0438 (17)0.0412 (17)0.0193 (14)0.0141 (14)0.0230 (15)
C20.0541 (19)0.0447 (18)0.0343 (17)0.0216 (15)0.0125 (15)0.0161 (15)
C30.0505 (18)0.0384 (16)0.0423 (18)0.0214 (14)0.0194 (15)0.0175 (15)
C40.0427 (16)0.0366 (15)0.0379 (16)0.0167 (13)0.0190 (14)0.0204 (13)
C50.0393 (16)0.0405 (16)0.0379 (16)0.0172 (13)0.0135 (13)0.0193 (14)
C60.0492 (18)0.0394 (16)0.0417 (17)0.0224 (14)0.0221 (14)0.0226 (15)
C70.0386 (15)0.0405 (16)0.0454 (17)0.0177 (13)0.0165 (13)0.0234 (15)
C80.0404 (16)0.0403 (16)0.0456 (17)0.0197 (13)0.0181 (13)0.0236 (14)
C90.0398 (16)0.0461 (17)0.0380 (16)0.0211 (14)0.0201 (14)0.0264 (15)
C100.0426 (17)0.0429 (17)0.0370 (17)0.0206 (14)0.0142 (14)0.0227 (15)
C110.0368 (16)0.0447 (17)0.0396 (17)0.0207 (14)0.0114 (13)0.0205 (15)
C120.0316 (16)0.0445 (18)0.0385 (16)0.0153 (14)0.0144 (13)0.0217 (15)
C130.053 (2)0.058 (2)0.0372 (17)0.0269 (17)0.0162 (15)0.0268 (16)
C140.058 (2)0.0441 (18)0.052 (2)0.0275 (16)0.0221 (17)0.0280 (16)
Geometric parameters (Å, º) top
Cd1—O62.284 (2)C3—H30.9500
Cd1—N12.323 (3)C4—C51.386 (4)
Cd1—O52.364 (2)C4—C61.507 (5)
Cd1—O4i2.374 (3)C5—H50.9500
Cd1—O12.378 (2)C6—H6A0.9900
Cd1—O22.435 (2)C6—H6B0.9900
Cd1—O3i2.540 (2)C7—C8ii1.506 (4)
O1—C91.268 (4)C7—H7A0.9900
O2—C91.258 (4)C7—H7B0.9900
O3—C121.256 (4)C8—C7ii1.506 (4)
O4—C121.259 (4)C8—H8A0.9900
O5—H5C0.84 (4)C8—H8B0.9900
O5—H5D0.830 (18)C9—C101.539 (4)
O6—H6C0.851 (18)C10—C141.528 (4)
O6—H6D0.825 (18)C10—C131.532 (4)
N1—C51.336 (4)C10—C111.553 (5)
N1—C11.342 (4)C11—C121.523 (4)
N2—C61.474 (4)C11—H11A0.9900
N2—C71.475 (4)C11—H11B0.9900
N2—C81.478 (4)C13—H13A0.9800
C1—C21.379 (5)C13—H13B0.9800
C1—H10.9500C13—H13C0.9800
C2—C31.369 (5)C14—H14A0.9800
C2—H20.9500C14—H14B0.9800
C3—C41.397 (5)C14—H14C0.9800
H14B—C14—H14C109.5C5—C4—C6122.3 (3)
O6—Cd1—N190.10 (9)C3—C4—C6121.2 (3)
O6—Cd1—O5175.51 (7)N1—C5—C4124.1 (3)
N1—Cd1—O590.19 (9)N1—C5—H5118.0
O6—Cd1—O4i90.71 (8)C4—C5—H5118.0
N1—Cd1—O4i138.03 (8)N2—C6—C4115.3 (3)
O5—Cd1—O4i86.08 (8)N2—C6—H6A108.5
O6—Cd1—O186.80 (8)C4—C6—H6A108.5
N1—Cd1—O1140.28 (8)N2—C6—H6B108.5
O5—Cd1—O195.83 (8)C4—C6—H6B108.5
O4i—Cd1—O181.63 (8)H6A—C6—H6B107.5
O6—Cd1—O2106.73 (8)N2—C7—C8ii110.9 (3)
N1—Cd1—O288.92 (8)N2—C7—H7A109.5
O5—Cd1—O277.76 (8)C8ii—C7—H7A109.5
O4i—Cd1—O2130.56 (8)N2—C7—H7B109.5
O1—Cd1—O254.59 (7)C8ii—C7—H7B109.5
O6—Cd1—O3i95.93 (8)H7A—C7—H7B108.1
N1—Cd1—O3i85.50 (8)N2—C8—C7ii111.1 (2)
O5—Cd1—O3i79.62 (8)N2—C8—H8A109.4
O4i—Cd1—O3i52.70 (8)C7ii—C8—H8A109.4
O1—Cd1—O3i134.21 (7)N2—C8—H8B109.4
O2—Cd1—O3i156.67 (9)C7ii—C8—H8B109.4
O6—Cd1—C998.97 (9)H8A—C8—H8B108.0
N1—Cd1—C9115.36 (9)O2—C9—O1121.9 (3)
O5—Cd1—C984.95 (9)O2—C9—C10119.1 (3)
O4i—Cd1—C9105.92 (9)O1—C9—C10118.9 (3)
O1—Cd1—C927.43 (8)O2—C9—Cd162.34 (16)
O2—Cd1—C927.24 (8)O1—C9—Cd159.80 (16)
O3i—Cd1—C9154.14 (8)C10—C9—Cd1171.7 (2)
C9—O1—Cd192.76 (18)C14—C10—C13110.1 (3)
C9—O2—Cd190.42 (18)C14—C10—C9110.8 (3)
C12—O3—Cd1i89.11 (19)C13—C10—C9109.0 (3)
C12—O4—Cd1i96.79 (19)C14—C10—C11111.3 (3)
Cd1—O5—H5C96 (3)C13—C10—C11107.9 (3)
Cd1—O5—H5D107 (3)C9—C10—C11107.5 (3)
H5C—O5—H5D108 (3)C12—C11—C10112.2 (3)
Cd1—O6—H6C111 (3)C12—C11—H11A109.2
Cd1—O6—H6D110 (3)C10—C11—H11A109.2
H6C—O6—H6D106 (3)C12—C11—H11B109.2
C5—N1—C1118.2 (3)C10—C11—H11B109.2
C5—N1—Cd1120.3 (2)H11A—C11—H11B107.9
C1—N1—Cd1121.3 (2)O3—C12—O4120.7 (3)
C6—N2—C7111.3 (3)O3—C12—C11120.6 (3)
C6—N2—C8108.4 (2)O4—C12—C11118.6 (3)
C7—N2—C8108.8 (2)C10—C13—H13A109.5
N1—C1—C2121.6 (3)C10—C13—H13B109.5
N1—C1—H1119.2H13A—C13—H13B109.5
C2—C1—H1119.2C10—C13—H13C109.5
C3—C2—C1119.8 (3)H13A—C13—H13C109.5
C3—C2—H2120.1H13B—C13—H13C109.5
C1—C2—H2120.1C10—C14—H14A109.5
C2—C3—C4119.8 (3)C10—C14—H14B109.5
C2—C3—H3120.1H14A—C14—H14B109.5
C4—C3—H3120.1C10—C14—H14C109.5
C5—C4—C3116.5 (3)H14A—C14—H14C109.5
O6—Cd1—O1—C9116.54 (18)C5—C4—C6—N234.4 (4)
N1—Cd1—O1—C930.2 (2)C3—C4—C6—N2148.3 (3)
O5—Cd1—O1—C967.12 (18)C6—N2—C7—C8ii176.9 (2)
O4i—Cd1—O1—C9152.27 (18)C8—N2—C7—C8ii57.5 (3)
O2—Cd1—O1—C93.36 (16)C6—N2—C8—C7ii178.9 (2)
O3i—Cd1—O1—C9148.30 (17)C7—N2—C8—C7ii57.7 (4)
O6—Cd1—O2—C976.80 (18)Cd1—O2—C9—O16.1 (3)
N1—Cd1—O2—C9166.58 (17)Cd1—O2—C9—C10170.7 (2)
O5—Cd1—O2—C9102.99 (18)Cd1—O1—C9—O26.2 (3)
O4i—Cd1—O2—C929.1 (2)Cd1—O1—C9—C10170.6 (2)
O1—Cd1—O2—C93.38 (16)O6—Cd1—C9—O2109.28 (17)
O3i—Cd1—O2—C9117.4 (2)N1—Cd1—C9—O214.88 (19)
O6—Cd1—N1—C589.2 (2)O5—Cd1—C9—O272.93 (17)
O5—Cd1—N1—C586.3 (2)O4i—Cd1—C9—O2157.39 (16)
O4i—Cd1—N1—C51.9 (3)O1—Cd1—C9—O2174.0 (3)
O1—Cd1—N1—C5174.34 (19)O3i—Cd1—C9—O2126.3 (2)
O2—Cd1—N1—C5164.0 (2)O6—Cd1—C9—O164.73 (18)
O3i—Cd1—N1—C56.7 (2)N1—Cd1—C9—O1159.13 (16)
C9—Cd1—N1—C5170.8 (2)O5—Cd1—C9—O1113.06 (18)
O6—Cd1—N1—C196.0 (2)O4i—Cd1—C9—O128.61 (18)
O5—Cd1—N1—C188.5 (2)O2—Cd1—C9—O1174.0 (3)
O4i—Cd1—N1—C1172.8 (2)O3i—Cd1—C9—O159.7 (3)
O1—Cd1—N1—C110.9 (3)O2—C9—C10—C14162.7 (3)
O2—Cd1—N1—C110.7 (2)O1—C9—C10—C1420.4 (4)
O3i—Cd1—N1—C1168.1 (2)O2—C9—C10—C1341.4 (4)
C9—Cd1—N1—C14.0 (3)O1—C9—C10—C13141.7 (3)
C5—N1—C1—C21.5 (5)O2—C9—C10—C1175.4 (3)
Cd1—N1—C1—C2173.4 (2)O1—C9—C10—C11101.5 (3)
N1—C1—C2—C30.2 (5)C14—C10—C11—C1268.5 (3)
C1—C2—C3—C42.1 (5)C13—C10—C11—C12170.5 (3)
C2—C3—C4—C52.1 (5)C9—C10—C11—C1253.1 (3)
C2—C3—C4—C6175.2 (3)Cd1i—O3—C12—O48.2 (3)
C1—N1—C5—C41.4 (5)Cd1i—O3—C12—C11169.0 (2)
Cd1—N1—C5—C4173.5 (2)Cd1i—O4—C12—O38.9 (3)
C3—C4—C5—N10.4 (5)Cd1i—O4—C12—C11168.4 (2)
C6—C4—C5—N1176.9 (3)C10—C11—C12—O389.1 (3)
C7—N2—C6—C466.3 (3)C10—C11—C12—O488.2 (3)
C8—N2—C6—C4174.1 (3)
Symmetry codes: (i) x, y+1, z+1; (ii) x+1, y, z+1.
Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
O5—H5C···O40.84 (4)1.93 (2)2.705 (3)154 (4)
O5—H5D···O1i0.83 (2)1.99 (2)2.744 (3)152 (3)
O6—H6C···O3iii0.85 (2)1.84 (2)2.679 (3)171 (4)
O6—H6D···N2iv0.83 (2)2.03 (2)2.851 (4)173 (4)
Symmetry codes: (i) x, y+1, z+1; (iii) x+1, y, z; (iv) x+1, y+1, z+1.

Experimental details

Crystal data
Chemical formula[Cd2(C6H8O4)2(C16H20N4)(H2O)4]
Mr426.74
Crystal system, space groupTriclinic, P1
Temperature (K)173
a, b, c (Å)9.275 (3), 10.378 (3), 10.625 (5)
α, β, γ (°)114.461 (3), 101.274 (3), 106.687 (2)
V3)831.6 (5)
Z2
Radiation typeMo Kα
µ (mm1)1.34
Crystal size (mm)0.26 × 0.18 × 0.13
Data collection
DiffractometerBruker APEXII
Absorption correctionMulti-scan
(SADABS; Sheldrick, 1996)
Tmin, Tmax0.723, 0.840
No. of measured, independent and
observed [I > 2σ(I)] reflections
12027, 3047, 2909
Rint0.058
(sin θ/λ)max1)0.602
Refinement
R[F2 > 2σ(F2)], wR(F2), S 0.035, 0.099, 1.16
No. of reflections3047
No. of parameters222
No. of restraints6
H-atom treatmentH atoms treated by a mixture of independent and constrained refinement
Δρmax, Δρmin (e Å3)0.65, 1.07

Computer programs: APEX2 (Bruker, 2006), SAINT (Bruker, 2006), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), CrystalMaker (Palmer, 2007).

Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
O5—H5C···O40.84 (4)1.93 (2)2.705 (3)154 (4)
O5—H5D···O1i0.830 (18)1.99 (2)2.744 (3)152 (3)
O6—H6C···O3ii0.851 (18)1.836 (19)2.679 (3)171 (4)
O6—H6D···N2iii0.825 (18)2.031 (19)2.851 (4)173 (4)
Symmetry codes: (i) x, y+1, z+1; (ii) x+1, y, z; (iii) x+1, y+1, z+1.
 

Acknowledgements

We gratefully acknowledge the donors of the American Chemical Society Petroleum Research Fund for funding this work. We also thank Anthony H. LaDuca for experimental assistance.

References

First citationBruker (2006). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.  Google Scholar
First citationJohnston, L. L., Martin, D. P., Supkowski, R. M. & LaDuca, R. L. (2008). Inorg. Chim. Acta, 361, 2887–2894.  Web of Science CSD CrossRef CAS Google Scholar
First citationNiu, Y., Hou, H., Wei, Y., Fan, Y., Zhu, Y., Du, C. & Xin, X. (2001). Inorg. Chem. Commun. 4, 358–361.  Web of Science CSD CrossRef CAS Google Scholar
First citationPalmer, D. (2007). CrystalMaker. CrystalMaker Software, Bicester, England.  Google Scholar
First citationSheldrick, G. M. (1996). SADABS, University of Göttingen, Germany.  Google Scholar
First citationSheldrick, G. M. (2008). Acta Cryst. A64, 112–122.  Web of Science CrossRef CAS IUCr Journals Google Scholar

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