metal-organic compounds
Diaquabis(N,N′-diethylnicotinamide-κN1)bis(4-fluorobenzoato-κO)copper(II)
aDepartment of Chemistry, Kafkas University, 36100 Kars, Turkey, and bDepartment of Physics, Hacettepe University, 06800 Beytepe, Ankara, Turkey
*Correspondence e-mail: merzifon@hacettepe.edu.tr
The II complex, [Cu(C7H4FO2)2(C10H14N2O)2(H2O)2], contains one-half of the molecule. The CuII ion is located on an inversion centre, and is coordinated by two N atoms from two diethylnicotinamide ligands, two O atoms from two 4-fluorobenzoate (PFB) ligands and two water molecules in a distorted octahedral geometry. In the PFB ligand, the carboxylate group is twisted at an angle of 2.10 (14)° from the attached benzene ring. In the intermolecular O—H⋯O hydrogen bonds link molecules related by translation along the a axis into chains. Weak intermolecular C—H⋯O hydrogen bonds and π–π interactions between the pyridine rings of neighbouring molecules [centroid-to-centroid distance = 3.571 (2) Å] further consolidate the crystal packing.
of the title mononuclear CuRelated literature
For background to niacin, see: Krishnamachari (1974). For infomation on the nicotinic acid derivative N,N-diethylnicotinamide, see: Bigoli et al. (1972). For related structures, see: Hökelek et al. (1996, 2009a,b); Hökelek & Necefoğlu (1998, 2007); Necefoğlu et al. (2011). For bond-length data, see: Allen et al. (1987).
Experimental
Crystal data
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Refinement
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Data collection: APEX2 (Bruker, 2007); cell SAINT (Bruker, 2007); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997); software used to prepare material for publication: WinGX (Farrugia, 1999) and PLATON (Spek, 2009).
Supporting information
10.1107/S1600536811029941/cv6646sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536811029941/cv6646Isup2.hkl
The title compound was prepared by the reaction of CuSO4.5H2O (1.23 g, 5 mmol) in H2O (20 ml) and DENA (1.78 g, 10 mmol) in H2O (20 ml) with sodium 4-fluorobenzoate (1.62 g, 10 mmol) in H2O (50 ml) at room temperature. The mixture was filtered and set aside to crystallize at ambient temperature for a week, giving blue single crystals.
Atoms H41 and H42 (for water molecules) were located in a difference Fourier map and isotropically refined. The C-bound H atoms were positioned geometrically with C—H = 0.93–0.97 Å, and constrained to ride on their parent atoms, with Uiso(H) = 1.2–1.5Ueq(C).
Data collection: APEX2 (Bruker, 2007); cell
SAINT (Bruker, 2007); data reduction: SAINT (Bruker, 2007); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997); software used to prepare material for publication: WinGX (Farrugia, 1999) and PLATON (Spek, 2009).Fig. 1. The molecular structure of the title molecule with the atom-numbering scheme. Displacement ellipsoids are drawn at the 50% probability level [symmetry code ('): -x, -y, -z]. |
[Cu(C7H4FO2)2(C10H14N2O)2(H2O)2] | Z = 1 |
Mr = 734.25 | F(000) = 383 |
Triclinic, P1 | Dx = 1.448 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 7.4802 (2) Å | Cell parameters from 9044 reflections |
b = 8.6753 (2) Å | θ = 2.9–28.4° |
c = 14.6695 (4) Å | µ = 0.72 mm−1 |
α = 77.164 (3)° | T = 100 K |
β = 84.723 (4)° | Block, blue |
γ = 65.151 (2)° | 0.48 × 0.32 × 0.21 mm |
V = 842.23 (4) Å3 |
Bruker Kappa APEXII CCD area-detector diffractometer | 4109 independent reflections |
Radiation source: fine-focus sealed tube | 3714 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.025 |
ϕ and ω scans | θmax = 28.5°, θmin = 1.4° |
Absorption correction: multi-scan (SADABS; Bruker, 2007) | h = −9→9 |
Tmin = 0.759, Tmax = 0.860 | k = −11→11 |
13620 measured reflections | l = −19→19 |
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)] = 0.033 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.099 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.15 | w = 1/[σ2(Fo2) + (0.0524P)2 + 0.2704P] where P = (Fo2 + 2Fc2)/3 |
4109 reflections | (Δ/σ)max < 0.001 |
233 parameters | Δρmax = 0.57 e Å−3 |
2 restraints | Δρmin = −0.45 e Å−3 |
[Cu(C7H4FO2)2(C10H14N2O)2(H2O)2] | γ = 65.151 (2)° |
Mr = 734.25 | V = 842.23 (4) Å3 |
Triclinic, P1 | Z = 1 |
a = 7.4802 (2) Å | Mo Kα radiation |
b = 8.6753 (2) Å | µ = 0.72 mm−1 |
c = 14.6695 (4) Å | T = 100 K |
α = 77.164 (3)° | 0.48 × 0.32 × 0.21 mm |
β = 84.723 (4)° |
Bruker Kappa APEXII CCD area-detector diffractometer | 4109 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2007) | 3714 reflections with I > 2σ(I) |
Tmin = 0.759, Tmax = 0.860 | Rint = 0.025 |
13620 measured reflections |
R[F2 > 2σ(F2)] = 0.033 | 2 restraints |
wR(F2) = 0.099 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.15 | Δρmax = 0.57 e Å−3 |
4109 reflections | Δρmin = −0.45 e Å−3 |
233 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 | ||
Cu1 | 0.0000 | 0.0000 | 0.0000 | 0.01357 (9) | |
O1 | 0.16849 (16) | −0.15368 (15) | 0.10899 (8) | 0.0158 (2) | |
O2 | −0.04849 (17) | −0.19328 (17) | 0.21759 (8) | 0.0203 (3) | |
O3 | −0.43885 (17) | −0.29279 (17) | −0.12427 (8) | 0.0201 (3) | |
O4 | 0.29700 (18) | 0.01961 (18) | −0.07056 (9) | 0.0209 (3) | |
H41 | 0.242 (4) | 0.068 (3) | −0.1223 (13) | 0.047 (8)* | |
H42 | 0.382 (3) | −0.074 (2) | −0.0817 (16) | 0.032 (6)* | |
N1 | 0.03309 (19) | −0.20678 (18) | −0.05247 (9) | 0.0140 (3) | |
N2 | −0.2966 (2) | −0.34165 (19) | −0.26337 (10) | 0.0170 (3) | |
F1 | 0.65236 (17) | −0.32105 (18) | 0.47171 (7) | 0.0329 (3) | |
C1 | 0.1133 (2) | −0.1884 (2) | 0.19273 (11) | 0.0144 (3) | |
C2 | 0.2588 (2) | −0.2244 (2) | 0.26753 (11) | 0.0149 (3) | |
C3 | 0.2080 (2) | −0.2568 (2) | 0.36158 (11) | 0.0177 (3) | |
H3 | 0.0846 | −0.2564 | 0.3777 | 0.021* | |
C4 | 0.3405 (3) | −0.2895 (2) | 0.43123 (12) | 0.0209 (4) | |
H4 | 0.3080 | −0.3110 | 0.4941 | 0.025* | |
C5 | 0.5214 (3) | −0.2892 (2) | 0.40410 (12) | 0.0212 (4) | |
C6 | 0.5773 (2) | −0.2567 (2) | 0.31234 (12) | 0.0197 (3) | |
H6 | 0.7008 | −0.2568 | 0.2970 | 0.024* | |
C7 | 0.4429 (2) | −0.2236 (2) | 0.24351 (11) | 0.0159 (3) | |
H7 | 0.4761 | −0.2006 | 0.1808 | 0.019* | |
C8 | 0.2015 (2) | −0.3509 (2) | −0.04352 (11) | 0.0158 (3) | |
H8 | 0.3068 | −0.3555 | −0.0122 | 0.019* | |
C9 | 0.2241 (2) | −0.4928 (2) | −0.07912 (11) | 0.0170 (3) | |
H9 | 0.3423 | −0.5912 | −0.0711 | 0.020* | |
C10 | 0.0693 (2) | −0.4873 (2) | −0.12681 (11) | 0.0159 (3) | |
H10 | 0.0819 | −0.5808 | −0.1519 | 0.019* | |
C11 | −0.1058 (2) | −0.3376 (2) | −0.13609 (10) | 0.0141 (3) | |
C12 | −0.1186 (2) | −0.2029 (2) | −0.09675 (11) | 0.0141 (3) | |
H12 | −0.2374 | −0.1052 | −0.1011 | 0.017* | |
C13 | −0.2925 (2) | −0.3226 (2) | −0.17555 (11) | 0.0148 (3) | |
C14 | −0.1364 (3) | −0.3544 (3) | −0.33111 (12) | 0.0215 (4) | |
H14A | −0.1352 | −0.4266 | −0.3732 | 0.026* | |
H14B | −0.0117 | −0.4107 | −0.2979 | 0.026* | |
C15 | −0.1552 (3) | −0.1797 (3) | −0.38791 (16) | 0.0354 (5) | |
H15A | −0.0445 | −0.1953 | −0.4293 | 0.053* | |
H15B | −0.1584 | −0.1069 | −0.3466 | 0.053* | |
H15C | −0.2747 | −0.1262 | −0.4239 | 0.053* | |
C16 | −0.4830 (2) | −0.3304 (2) | −0.29629 (13) | 0.0211 (4) | |
H16A | −0.5377 | −0.3920 | −0.2465 | 0.025* | |
H16B | −0.4550 | −0.3885 | −0.3486 | 0.025* | |
C17 | −0.6367 (3) | −0.1461 (3) | −0.32646 (15) | 0.0288 (4) | |
H17A | −0.7545 | −0.1488 | −0.3455 | 0.043* | |
H17B | −0.5866 | −0.0855 | −0.3778 | 0.043* | |
H17C | −0.6660 | −0.0874 | −0.2751 | 0.043* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cu1 | 0.01438 (14) | 0.01390 (16) | 0.01479 (14) | −0.00694 (11) | −0.00242 (9) | −0.00428 (10) |
O1 | 0.0159 (5) | 0.0163 (6) | 0.0160 (5) | −0.0067 (5) | −0.0017 (4) | −0.0041 (4) |
O2 | 0.0151 (6) | 0.0250 (7) | 0.0224 (6) | −0.0102 (5) | −0.0015 (4) | −0.0035 (5) |
O3 | 0.0144 (5) | 0.0262 (7) | 0.0218 (6) | −0.0087 (5) | 0.0012 (4) | −0.0092 (5) |
O4 | 0.0163 (6) | 0.0227 (7) | 0.0216 (6) | −0.0052 (5) | 0.0000 (5) | −0.0063 (5) |
N1 | 0.0131 (6) | 0.0153 (7) | 0.0159 (6) | −0.0077 (5) | 0.0011 (5) | −0.0044 (5) |
N2 | 0.0141 (6) | 0.0198 (7) | 0.0189 (6) | −0.0069 (5) | −0.0020 (5) | −0.0063 (5) |
F1 | 0.0312 (6) | 0.0496 (8) | 0.0231 (5) | −0.0225 (6) | −0.0122 (4) | −0.0007 (5) |
C1 | 0.0147 (7) | 0.0100 (7) | 0.0197 (7) | −0.0047 (6) | −0.0021 (6) | −0.0052 (6) |
C2 | 0.0156 (7) | 0.0122 (8) | 0.0176 (7) | −0.0056 (6) | −0.0011 (6) | −0.0045 (6) |
C3 | 0.0167 (7) | 0.0172 (8) | 0.0206 (8) | −0.0080 (6) | 0.0000 (6) | −0.0047 (6) |
C4 | 0.0250 (9) | 0.0235 (9) | 0.0157 (7) | −0.0116 (7) | −0.0011 (6) | −0.0029 (7) |
C5 | 0.0227 (8) | 0.0231 (9) | 0.0204 (8) | −0.0109 (7) | −0.0082 (6) | −0.0033 (7) |
C6 | 0.0160 (8) | 0.0209 (9) | 0.0240 (8) | −0.0091 (7) | −0.0024 (6) | −0.0039 (7) |
C7 | 0.0170 (7) | 0.0148 (8) | 0.0168 (7) | −0.0073 (6) | −0.0007 (6) | −0.0034 (6) |
C8 | 0.0135 (7) | 0.0177 (8) | 0.0166 (7) | −0.0064 (6) | −0.0002 (5) | −0.0044 (6) |
C9 | 0.0129 (7) | 0.0174 (8) | 0.0193 (7) | −0.0041 (6) | −0.0006 (6) | −0.0051 (6) |
C10 | 0.0164 (7) | 0.0144 (8) | 0.0183 (7) | −0.0064 (6) | 0.0011 (6) | −0.0065 (6) |
C11 | 0.0141 (7) | 0.0158 (8) | 0.0149 (7) | −0.0082 (6) | −0.0002 (5) | −0.0037 (6) |
C12 | 0.0126 (7) | 0.0143 (8) | 0.0162 (7) | −0.0059 (6) | −0.0008 (5) | −0.0036 (6) |
C13 | 0.0145 (7) | 0.0121 (8) | 0.0188 (7) | −0.0055 (6) | −0.0020 (6) | −0.0037 (6) |
C14 | 0.0196 (8) | 0.0264 (10) | 0.0183 (8) | −0.0075 (7) | 0.0001 (6) | −0.0081 (7) |
C15 | 0.0334 (11) | 0.0348 (12) | 0.0418 (11) | −0.0194 (9) | 0.0083 (9) | −0.0077 (10) |
C16 | 0.0186 (8) | 0.0229 (9) | 0.0255 (8) | −0.0082 (7) | −0.0068 (6) | −0.0099 (7) |
C17 | 0.0203 (9) | 0.0243 (10) | 0.0397 (10) | −0.0036 (7) | −0.0097 (7) | −0.0097 (8) |
Cu1—O1 | 1.9833 (11) | C6—H6 | 0.9300 |
Cu1—O1i | 1.9833 (11) | C7—C6 | 1.388 (2) |
Cu1—O4 | 2.4192 (12) | C7—H7 | 0.9300 |
Cu1—O4i | 2.4192 (12) | C8—H8 | 0.9300 |
Cu1—N1 | 2.0192 (14) | C9—C8 | 1.382 (2) |
Cu1—N1i | 2.0192 (14) | C9—C10 | 1.385 (2) |
O1—C1 | 1.2716 (19) | C9—H9 | 0.9300 |
O2—C1 | 1.247 (2) | C10—H10 | 0.9300 |
O3—C13 | 1.2363 (19) | C11—C10 | 1.395 (2) |
O4—H41 | 0.831 (17) | C11—C13 | 1.505 (2) |
O4—H42 | 0.833 (16) | C12—C11 | 1.379 (2) |
N1—C8 | 1.342 (2) | C12—H12 | 0.9300 |
N1—C12 | 1.343 (2) | C14—C15 | 1.514 (3) |
N2—C13 | 1.339 (2) | C14—H14A | 0.9700 |
N2—C14 | 1.467 (2) | C14—H14B | 0.9700 |
N2—C16 | 1.475 (2) | C15—H15A | 0.9600 |
F1—C5 | 1.3601 (19) | C15—H15B | 0.9600 |
C1—C2 | 1.505 (2) | C15—H15C | 0.9600 |
C2—C3 | 1.395 (2) | C16—C17 | 1.519 (3) |
C2—C7 | 1.393 (2) | C16—H16A | 0.9700 |
C3—C4 | 1.388 (2) | C16—H16B | 0.9700 |
C3—H3 | 0.9300 | C17—H17A | 0.9600 |
C4—C5 | 1.376 (3) | C17—H17B | 0.9600 |
C4—H4 | 0.9300 | C17—H17C | 0.9600 |
C6—C5 | 1.376 (2) | ||
O1—Cu1—O1i | 180.00 (9) | C6—C7—C2 | 120.55 (15) |
O1—Cu1—O4 | 85.97 (4) | C6—C7—H7 | 119.7 |
O1i—Cu1—O4 | 94.03 (4) | N1—C8—C9 | 122.39 (15) |
O1—Cu1—O4i | 94.03 (4) | N1—C8—H8 | 118.8 |
O1i—Cu1—O4i | 85.97 (4) | C9—C8—H8 | 118.8 |
O4i—Cu1—O4 | 180.00 (9) | C8—C9—C10 | 119.52 (15) |
N1—Cu1—O4 | 94.85 (5) | C8—C9—H9 | 120.2 |
N1i—Cu1—O4 | 85.15 (5) | C10—C9—H9 | 120.2 |
N1—Cu1—O4i | 85.15 (5) | C9—C10—C11 | 118.13 (16) |
N1i—Cu1—O4i | 94.85 (5) | C9—C10—H10 | 120.9 |
O1—Cu1—N1 | 91.11 (5) | C11—C10—H10 | 120.9 |
O1i—Cu1—N1 | 88.89 (5) | C10—C11—C13 | 123.54 (15) |
O1—Cu1—N1i | 88.89 (5) | C12—C11—C10 | 118.98 (15) |
O1i—Cu1—N1i | 91.11 (5) | C12—C11—C13 | 116.96 (14) |
N1i—Cu1—N1 | 180.00 (6) | N1—C12—C11 | 122.80 (15) |
C1—O1—Cu1 | 127.30 (10) | N1—C12—H12 | 118.6 |
Cu1—O4—H41 | 91.8 (19) | C11—C12—H12 | 118.6 |
Cu1—O4—H42 | 114.0 (17) | O3—C13—N2 | 122.08 (15) |
H41—O4—H42 | 102 (2) | O3—C13—C11 | 117.74 (14) |
C8—N1—Cu1 | 122.34 (11) | N2—C13—C11 | 120.18 (14) |
C8—N1—C12 | 118.14 (15) | N2—C14—C15 | 113.02 (15) |
C12—N1—Cu1 | 119.51 (11) | N2—C14—H14A | 109.0 |
C13—N2—C14 | 124.35 (14) | N2—C14—H14B | 109.0 |
C13—N2—C16 | 117.12 (14) | C15—C14—H14A | 109.0 |
C14—N2—C16 | 118.20 (14) | C15—C14—H14B | 109.0 |
O1—C1—C2 | 115.78 (14) | H14A—C14—H14B | 107.8 |
O2—C1—O1 | 126.09 (14) | C14—C15—H15A | 109.5 |
O2—C1—C2 | 118.12 (14) | C14—C15—H15B | 109.5 |
C3—C2—C1 | 119.85 (14) | C14—C15—H15C | 109.5 |
C7—C2—C1 | 120.43 (14) | H15A—C15—H15B | 109.5 |
C7—C2—C3 | 119.72 (15) | H15A—C15—H15C | 109.5 |
C2—C3—H3 | 119.8 | H15B—C15—H15C | 109.5 |
C4—C3—C2 | 120.43 (16) | N2—C16—C17 | 114.09 (15) |
C4—C3—H3 | 119.8 | N2—C16—H16A | 108.7 |
C3—C4—H4 | 121.1 | N2—C16—H16B | 108.7 |
C5—C4—C3 | 117.76 (15) | C17—C16—H16A | 108.7 |
C5—C4—H4 | 121.1 | C17—C16—H16B | 108.7 |
F1—C5—C4 | 118.30 (15) | H16A—C16—H16B | 107.6 |
F1—C5—C6 | 117.84 (16) | C16—C17—H17A | 109.5 |
C6—C5—C4 | 123.86 (15) | C16—C17—H17B | 109.5 |
C5—C6—C7 | 117.68 (16) | C16—C17—H17C | 109.5 |
C5—C6—H6 | 121.2 | H17A—C17—H17B | 109.5 |
C7—C6—H6 | 121.2 | H17A—C17—H17C | 109.5 |
C2—C7—H7 | 119.7 | H17B—C17—H17C | 109.5 |
O4i—Cu1—O1—C1 | −21.24 (14) | C14—N2—C16—C17 | −93.55 (19) |
O4—Cu1—O1—C1 | 158.76 (14) | O1—C1—C2—C3 | 177.38 (15) |
N1i—Cu1—O1—C1 | 73.55 (14) | O1—C1—C2—C7 | −1.8 (2) |
N1—Cu1—O1—C1 | −106.45 (14) | O2—C1—C2—C3 | −1.9 (2) |
O1—Cu1—N1—C8 | −35.00 (12) | O2—C1—C2—C7 | 178.89 (15) |
O1i—Cu1—N1—C8 | 145.00 (12) | C1—C2—C3—C4 | −179.76 (16) |
O1—Cu1—N1—C12 | 143.87 (12) | C7—C2—C3—C4 | −0.6 (3) |
O1i—Cu1—N1—C12 | −36.13 (12) | C1—C2—C7—C6 | 179.96 (16) |
O4i—Cu1—N1—C8 | −128.95 (12) | C3—C2—C7—C6 | 0.8 (3) |
O4—Cu1—N1—C8 | 51.05 (12) | C2—C3—C4—C5 | −0.1 (3) |
O4i—Cu1—N1—C12 | 49.92 (12) | C3—C4—C5—F1 | 179.97 (16) |
O4—Cu1—N1—C12 | −130.08 (12) | C3—C4—C5—C6 | 0.7 (3) |
Cu1—O1—C1—O2 | 30.3 (2) | C7—C6—C5—F1 | −179.76 (16) |
Cu1—O1—C1—C2 | −148.91 (11) | C7—C6—C5—C4 | −0.5 (3) |
Cu1—N1—C8—C9 | 179.77 (12) | C2—C7—C6—C5 | −0.3 (3) |
C12—N1—C8—C9 | 0.9 (2) | C10—C9—C8—N1 | 0.7 (2) |
Cu1—N1—C12—C11 | 178.59 (11) | C8—C9—C10—C11 | −0.7 (2) |
C8—N1—C12—C11 | −2.5 (2) | C12—C11—C10—C9 | −0.8 (2) |
C14—N2—C13—O3 | 171.65 (16) | C13—C11—C10—C9 | −172.22 (15) |
C14—N2—C13—C11 | −8.5 (2) | C10—C11—C13—O3 | 118.97 (18) |
C16—N2—C13—O3 | −1.6 (2) | C10—C11—C13—N2 | −60.9 (2) |
C16—N2—C13—C11 | 178.22 (14) | C12—C11—C13—O3 | −52.6 (2) |
C13—N2—C14—C15 | −89.5 (2) | C12—C11—C13—N2 | 127.53 (17) |
C16—N2—C14—C15 | 83.7 (2) | N1—C12—C11—C10 | 2.5 (2) |
C13—N2—C16—C17 | 80.1 (2) | N1—C12—C11—C13 | 174.46 (14) |
Symmetry code: (i) −x, −y, −z. |
D—H···A | D—H | H···A | D···A | D—H···A |
O4—H41···O2i | 0.83 (2) | 1.90 (2) | 2.7050 (19) | 163 (3) |
O4—H42···O3ii | 0.83 (2) | 2.01 (2) | 2.834 (2) | 172 (2) |
C6—H6···O2ii | 0.93 | 2.32 | 3.211 (2) | 162 |
C10—H10···O2iii | 0.93 | 2.48 | 3.394 (2) | 170 |
Symmetry codes: (i) −x, −y, −z; (ii) x+1, y, z; (iii) −x, −y−1, −z. |
Experimental details
Crystal data | |
Chemical formula | [Cu(C7H4FO2)2(C10H14N2O)2(H2O)2] |
Mr | 734.25 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 100 |
a, b, c (Å) | 7.4802 (2), 8.6753 (2), 14.6695 (4) |
α, β, γ (°) | 77.164 (3), 84.723 (4), 65.151 (2) |
V (Å3) | 842.23 (4) |
Z | 1 |
Radiation type | Mo Kα |
µ (mm−1) | 0.72 |
Crystal size (mm) | 0.48 × 0.32 × 0.21 |
Data collection | |
Diffractometer | Bruker Kappa APEXII CCD area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Bruker, 2007) |
Tmin, Tmax | 0.759, 0.860 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 13620, 4109, 3714 |
Rint | 0.025 |
(sin θ/λ)max (Å−1) | 0.670 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.033, 0.099, 1.15 |
No. of reflections | 4109 |
No. of parameters | 233 |
No. of restraints | 2 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.57, −0.45 |
Computer programs: APEX2 (Bruker, 2007), SAINT (Bruker, 2007), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 for Windows (Farrugia, 1997), WinGX (Farrugia, 1999) and PLATON (Spek, 2009).
D—H···A | D—H | H···A | D···A | D—H···A |
O4—H41···O2i | 0.83 (2) | 1.90 (2) | 2.7050 (19) | 163 (3) |
O4—H42···O3ii | 0.834 (18) | 2.007 (18) | 2.834 (2) | 172 (2) |
C6—H6···O2ii | 0.93 | 2.32 | 3.211 (2) | 162 |
C10—H10···O2iii | 0.93 | 2.48 | 3.394 (2) | 170 |
Symmetry codes: (i) −x, −y, −z; (ii) x+1, y, z; (iii) −x, −y−1, −z. |
Acknowledgements
The authors are indebted to Anadolu University and the Medicinal Plants and Medicine Research Centre of Anadolu University, Eskişehir, Turkey, for the use of the X-ray diffractometer. This work was financially supported by the Scientific and Technological Research Council of Turkey (grant No. 106 T472).
References
Allen, F. H., Kennard, O., Watson, D. G., Brammer, L., Orpen, A. G. & Taylor, R. (1987). J. Chem. Soc. Perkin Trans. 2, pp. S1–19. CrossRef Web of Science Google Scholar
Bigoli, F., Braibanti, A., Pellinghelli, M. A. & Tiripicchio, A. (1972). Acta Cryst. B28, 962–966. CSD CrossRef CAS IUCr Journals Web of Science Google Scholar
Bruker (2007). APEX2, SAINT and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Farrugia, L. J. (1997). J. Appl. Cryst. 30, 565. CrossRef IUCr Journals Google Scholar
Farrugia, L. J. (1999). J. Appl. Cryst. 32, 837–838. CrossRef CAS IUCr Journals Google Scholar
Hökelek, T., Dal, H., Tercan, B., Özbek, F. E. & Necefoğlu, H. (2009a). Acta Cryst. E65, m466–m467. Web of Science CSD CrossRef IUCr Journals Google Scholar
Hökelek, T., Dal, H., Tercan, B., Özbek, F. E. & Necefoğlu, H. (2009b). Acta Cryst. E65, m607–m608. Web of Science CSD CrossRef IUCr Journals Google Scholar
Hökelek, T., Gündüz, H. & Necefoğlu, H. (1996). Acta Cryst. C52, 2470–2473. CSD CrossRef Web of Science IUCr Journals Google Scholar
Hökelek, T. & Necefoğlu, H. (1998). Acta Cryst. C54, 1242–1244. Web of Science CSD CrossRef IUCr Journals Google Scholar
Hökelek, T. & Necefoğlu, H. (2007). Acta Cryst. E63, m821–m823. Web of Science CSD CrossRef IUCr Journals Google Scholar
Krishnamachari, K. A. V. R. (1974). Am. J. Clin. Nutr. 27, 108–111. CAS PubMed Web of Science Google Scholar
Necefoğlu, H., Maracı, A., Özbek, F. E., Tercan, B. & Hökelek, T. (2011). Acta Cryst. E67, m619–m620. Web of Science CSD CrossRef IUCr Journals Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Spek, A. L. (2009). Acta Cryst. D65, 148–155. Web of Science CrossRef CAS IUCr Journals Google Scholar
This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.
As a part of our ongoing investigations of transition metal complexes of nicotinamide (NA), one form of niacin (Krishnamachari, 1974), and/or the nicotinic acid derivative N,N-diethylnicotinamide (DENA), an important respiratory stimulant (Bigoli et al., 1972), the title compound was synthesized. Herewith we report its crystal structure (Fig. 1).
The asymmetric unit of the title mononuclear CuII complex contains one-half molecule, the CuII atom being located on an inversion center. The unit cell of the title compound contains also two N,N-diethylnicotinamide (DENA) ligands, two 4-fluorobenzoato (PFB) ligands and two coordinated water molecules. All ligands coordinate the Cu in a monodentate manner. The crystal structures of similar omplexes of CuII, CoII, NiII, MnII and ZnII ions, [Cu(C7H5O2)2(C10H14N2O)2] (Hökelek et al., 1996), [Co(C6H6N2O)2(C7H4NO4)2(H2O)2] (Hökelek & Necefoğlu, 1998), [Co(C9H9O2)2(C10H14N2O)2(H2O)2] (Necefoğlu et al., 2011), [Ni(C7H4ClO2)2(C6H6N2O)2(H2O)2] (Hökelek et al., 2009a), [Mn(C9H10NO2)2(H2O)4].2H2O (Hökelek & Necefoğlu, 2007) and [Zn(C7H4BrO2)2(C6H6N2O)2(H2O)2] (Hökelek et al., 2009b) have also been reported. In the copper(II) complex mentioned above the two benzoate ions coordinate to the CuII atom as bidentate ligands, while in the other structures all the ligands coordinate in a monodentate manner.
In the title complex, four O atoms (O1, O1', O4 and O4', see Fig. 1) in the equatorial plane around the CuII ion form a slightly distorted square-planar arrangement, while the slightly distorted octahedral coordination is completed by the two N atoms of the DENA ligands (N1 and N1') in the axial positions. The near equalities of the C1—O1 [1.2716 (19) Å] and C1—O2 [1.247 (2) Å] bonds in the carboxylate groups indicate delocalized bonding arrangements, rather than localized single and double bonds. The Cu—O bond lengths are 1.9833 (11) Å (for benzoate oxygen) and 2.4192 (12) Å (for water oxygen), and the Cu—N bond length is 2.0192 (14) Å, close to standard values (Allen et al., 1987). The Cu atom is displaced out of the mean plane of the carboxylate group (O1/C1/O2) by 0.7971 (1) Å. The dihedral angle between the planar carboxylate group and the adjacent benzene ring A (C2–C7) is 2.10 (14)°. The benzene A (C2–C7) and the pyridine B (N1/C8–C12) rings are oriented at a dihedral angle of A/B = 76.11 (6)°.
In the crystal structure, intermolecular O—H···O hydrogen bonds (Table 1) link the molecules related by translation along axis a into chains. Weak intermolecular C—H···O hydrogen bonds (Table 1) and π–π interactions between the pyridine rings from the neighbouring molecules [Cg1···Cg1i = 3.571 (2) Å; symmetry code: (i) 2 - x, 1 - y, -z; Cg1 is the centroid of N1/C8—C12] consolidate further the crystal packing.