metal-organic compounds
Aqua(dicyanamido-κN1)(2,9-dimethyl-1,10-phenanthroline-κ2N,N′)(nitrato-κ2O,O′)cobalt(II)–2,9-dimethyl-1,10-phenanthroline–water (2/1/2)
aCollege of Chemistry and Environmental Science, Henan Normal University, Xinxiang 453007, People's Republic of China, and bDepartment of Engineering and Technology, Xinxiang Vocational and Technical College, Xinxiang 453007, People's Republic of China
*Correspondence e-mail: pz_zhao@hotmail.com
In the title compound, 2[Co(C2N3)(NO3)(C14H12N2)(H2O)]·C14H12N2·2H2O, the CoII ion is coordinated by a bidentate 2,9-dimethyl-1,10-phenanthroline (dmphen) ligand, a bidentate nitrate anion, a water molecule and a monodentate dicyanamide group in a distorted octahedral geometry. One uncoordinated dmphen molecule is situated on a crystallographic twofold axis and the is completed by one water molecule. In the crystal, molecules form a one-dimensional framework in the [001] direction through O—H⋯N and O—H⋯O hydrogen bonds. The crystal packing is further stabilized by π–π stacking interactions between the dmphen rings of neighboring molecules, with a centroid–centroid separation of 3.5641 (8) Å and a partially overlapped arrangement of parallel dmphen rings with a distance of 3.407 (2) Å.
Related literature
For background to metal–phenanthroline complexes, see: Naing et al. (1995); Wang et al. (1996); Wall et al. (1999). For related Co(II)–phenanthroline structures, see: Ding et al. (2006); Xuan & Zhao (2007); Zhao et al. (2008).
Experimental
Crystal data
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Refinement
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Data collection: APEX2 (Bruker, 2004); cell SAINT (Bruker, 2004); data reduction: SAINT; 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: publCIF (Westrip, 2010).
Supporting information
https://doi.org/10.1107/S1600536811035148/bh2369sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536811035148/bh2369Isup2.hkl
NaN(CN)2 (0.0892 g, 1 mmol) was dissolved in distilled water (10 ml) and Co(NO3)2.6H2O (0.1456 g, 0.5 mmol) was added. This solution was added to a solution of 2,9-dimethyl-1,10-phenanthroline hemihydrate (C14H12N2.0.5H2O, 0.1088 g, 0.5 mmol) in ethanol (10 ml). The mixture was stirred at 323 K and then refluxed for 5 h, cooled to room temperature and filtered. Pink single crystals appeared over a period of 8 days by slow evaporation at room temperature.
Methyl H atoms were placed in calculated positions, with C—H = 0.96 Å, and refined with free torsion angles to fit the electron density; Uiso(H) = 1.5Ueq(carrier C). The water H atoms were located in a differemce map and refined in the riding approximation in their as-found positions and Uiso(H) = 1.5Ueq(carrier O). Other H atoms were placed in calculated positions, with C—H=0.93 Å, and refined in the riding-model approximation with Uiso(H) = 1.2Ueq(carrier C). The final
was carried out with 36 restraints on anisotropic displacement parameters for atoms N4, C16, N5, C17, C18, C19, C20 and C21, in order to approximate an isotropic behaviour.Metal-phenanthroline complexes and their derivatives have attracted much attention because of their peculiar features (Wang et al., 1996; Wall et al., 1999; Naing et al., 1995). Some Co(II)-phenanthroline complexes have been synthesized and structures were determined (Ding et al., 2006; Xuan & Zhao, 2007; Zhao et al., 2008). Recently, we obtained the title cobalt(II) complex, by reacting 2,9-dimethyl-1,10-phenanthroline, NaN(CN)2 and Co(NO3)2 in an ethanol/water mixture. The structure of the title compound, 2[Co(C14H12N2)N(CN)2NO3H2O].C14H12N2.2H2O is described below.
Each CoII ion is six-coordinated by two N atoms from a 2,9-dimethyl-1,10-phenanthroline ligand, two O atoms from a nitrate anion, one O atom from a water molecule and one N from a dicyanamide anion. The water and N3/C15/N4/C16/N5 ligands occupy the axial positions, with a N3—Co1—O4 bond angle of 171.71 (16)°. The CoII ion locates in the center, and CoO3N3 unit forms a distorted octahedral geometry. The uncoordinated dmphen molecule is placed on a crystallographic twofold axis (Fig. 1).
In the π-π stacking between the dmphen rings. Uncoordinated N7A-dmphen and N7B-dmphen rings are also parallel with distance of 10.4286 (19) Å. In addition, the distance between the ring centroids Cg (C4A···C7A/C11A/C12A) and Cg (C17A···C20A/C22A/N7A) is 3.5641 (8) Å (Fig. 3). This value is close to the van der Waals thickness of the π-π stacking between nearly parallel dmphen (N7A-dmphen with Co1A-dmphen and Co1B-dmphen with N7B-dmphen) rings [dihedral angle: 3.4 (1)°].
molecules are linked into a one-dimensional framework by O—H···N and O—H···O hydrogen bonds (Fig. 2). A partially overlapped arrangement of neighboring parallel Co1A-dmphen and Co1B-dmphen [symmetry code: (A) -x + 1, y, -z + 1/2; (B) -x + 1, -y + 1, -z + 1] rings with distance of 3.4065 (20) Å is observed. The shorter face-to-face separation clearly indicates the existence ofFor background to metal–phenanthroline complexes, see: Naing et al. (1995); Wang et al. (1996); Wall et al. (1999). For related Co(II)–phenanthroline structures, see: Ding et al. (2006); Xuan & Zhao (2007); Zhao et al. (2008).
Data collection: APEX2 (Bruker, 2004); cell
SAINT (Bruker, 2004); data reduction: SAINT (Bruker, 2004); 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: publCIF (Westrip, 2010).2[Co(C2N3)(NO3)(C14H12N2)(H2O)]·C14H12N2·2H2O | F(000) = 2208 |
Mr = 1070.82 | Dx = 1.499 Mg m−3 |
Monoclinic, C2/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -C 2yc | Cell parameters from 2628 reflections |
a = 17.993 (6) Å | θ = 2.4–21.2° |
b = 11.770 (4) Å | µ = 0.77 mm−1 |
c = 23.428 (7) Å | T = 291 K |
β = 106.981 (4)° | Block, pink |
V = 4745 (3) Å3 | 0.34 × 0.18 × 0.11 mm |
Z = 4 |
Bruker APEXII CCD area-detector diffractometer | 4400 independent reflections |
Radiation source: fine-focus sealed tube | 2862 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.070 |
φ and ω scans | θmax = 25.5°, θmin = 2.4° |
Absorption correction: multi-scan (SADABS; Bruker, 2004) | h = −21→21 |
Tmin = 0.781, Tmax = 0.917 | k = −13→14 |
17592 measured reflections | l = −28→28 |
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)] = 0.066 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.196 | H-atom parameters constrained |
S = 1.04 | w = 1/[σ2(Fo2) + (0.1026P)2 + 4.8562P] where P = (Fo2 + 2Fc2)/3 |
4400 reflections | (Δ/σ)max < 0.001 |
328 parameters | Δρmax = 1.06 e Å−3 |
36 restraints | Δρmin = −0.58 e Å−3 |
0 constraints |
2[Co(C2N3)(NO3)(C14H12N2)(H2O)]·C14H12N2·2H2O | V = 4745 (3) Å3 |
Mr = 1070.82 | Z = 4 |
Monoclinic, C2/c | Mo Kα radiation |
a = 17.993 (6) Å | µ = 0.77 mm−1 |
b = 11.770 (4) Å | T = 291 K |
c = 23.428 (7) Å | 0.34 × 0.18 × 0.11 mm |
β = 106.981 (4)° |
Bruker APEXII CCD area-detector diffractometer | 4400 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2004) | 2862 reflections with I > 2σ(I) |
Tmin = 0.781, Tmax = 0.917 | Rint = 0.070 |
17592 measured reflections |
R[F2 > 2σ(F2)] = 0.066 | 36 restraints |
wR(F2) = 0.196 | H-atom parameters constrained |
S = 1.04 | Δρmax = 1.06 e Å−3 |
4400 reflections | Δρmin = −0.58 e Å−3 |
328 parameters |
x | y | z | Uiso*/Ueq | ||
Co1 | 0.42687 (4) | 0.19148 (5) | 0.38145 (3) | 0.0453 (3) | |
O1 | 0.3472 (2) | 0.0602 (3) | 0.32847 (17) | 0.0706 (10) | |
O2 | 0.3720 (3) | −0.1178 (3) | 0.3477 (2) | 0.1070 (17) | |
O3 | 0.4528 (2) | 0.0107 (3) | 0.39358 (17) | 0.0648 (10) | |
O4 | 0.4792 (3) | 0.1851 (3) | 0.31525 (17) | 0.0672 (11) | |
H1W | 0.4450 | 0.1747 | 0.2819 | 0.101* | |
H2W | 0.5124 | 0.2344 | 0.3124 | 0.101* | |
O5 | 0.5612 (6) | −0.0066 (7) | 0.2802 (4) | 0.233 (5) | |
H3W | 0.5731 | 0.0572 | 0.2975 | 0.350* | |
H4W | 0.5602 | −0.0359 | 0.3132 | 0.350* | |
N1 | 0.5202 (2) | 0.2867 (3) | 0.43700 (16) | 0.0443 (9) | |
N2 | 0.3892 (2) | 0.3599 (3) | 0.35623 (16) | 0.0434 (9) | |
N3 | 0.3653 (3) | 0.1776 (4) | 0.4424 (2) | 0.0694 (13) | |
N4 | 0.2925 (4) | 0.1214 (6) | 0.5087 (3) | 0.114 (2) | |
N5 | 0.3362 (7) | 0.1052 (7) | 0.6164 (4) | 0.172 (4) | |
N6 | 0.3906 (3) | −0.0181 (4) | 0.3558 (2) | 0.0667 (12) | |
N7 | 0.5696 (2) | 0.3653 (4) | 0.29332 (18) | 0.0534 (10) | |
C1 | 0.5844 (3) | 0.2489 (5) | 0.4772 (2) | 0.0568 (13) | |
C2 | 0.6423 (3) | 0.3248 (7) | 0.5087 (3) | 0.0753 (18) | |
H2 | 0.6866 | 0.2966 | 0.5363 | 0.090* | |
C3 | 0.6345 (3) | 0.4380 (6) | 0.4995 (3) | 0.0701 (16) | |
H3 | 0.6737 | 0.4871 | 0.5200 | 0.084* | |
C4 | 0.5662 (3) | 0.4812 (5) | 0.4582 (2) | 0.0582 (14) | |
C5 | 0.5522 (4) | 0.5994 (5) | 0.4464 (3) | 0.0696 (16) | |
H5 | 0.5887 | 0.6522 | 0.4669 | 0.084* | |
C6 | 0.4872 (4) | 0.6351 (5) | 0.4062 (3) | 0.0694 (16) | |
H6 | 0.4793 | 0.7125 | 0.3991 | 0.083* | |
C7 | 0.4299 (3) | 0.5567 (4) | 0.3738 (2) | 0.0534 (13) | |
C8 | 0.3608 (4) | 0.5883 (4) | 0.3314 (3) | 0.0639 (15) | |
H8 | 0.3504 | 0.6647 | 0.3226 | 0.077* | |
C9 | 0.3089 (3) | 0.5090 (5) | 0.3029 (3) | 0.0651 (15) | |
H9 | 0.2633 | 0.5308 | 0.2745 | 0.078* | |
C10 | 0.3242 (3) | 0.3931 (4) | 0.3164 (2) | 0.0504 (12) | |
C11 | 0.4419 (3) | 0.4398 (4) | 0.38500 (19) | 0.0433 (11) | |
C12 | 0.5111 (3) | 0.4015 (4) | 0.4278 (2) | 0.0455 (11) | |
C13 | 0.5937 (4) | 0.1235 (5) | 0.4881 (3) | 0.0800 (18) | |
H13A | 0.5582 | 0.0983 | 0.5091 | 0.120* | |
H13B | 0.6460 | 0.1073 | 0.5115 | 0.120* | |
H13C | 0.5827 | 0.0844 | 0.4505 | 0.120* | |
C14 | 0.2674 (3) | 0.3042 (5) | 0.2860 (3) | 0.0705 (16) | |
H14A | 0.2920 | 0.2521 | 0.2658 | 0.106* | |
H14B | 0.2240 | 0.3394 | 0.2576 | 0.106* | |
H14C | 0.2495 | 0.2638 | 0.3151 | 0.106* | |
C15 | 0.3341 (4) | 0.1530 (5) | 0.4758 (3) | 0.0691 (16) | |
C16 | 0.3184 (6) | 0.1179 (7) | 0.5646 (5) | 0.110 (3) | |
C17 | 0.6397 (4) | 0.3631 (7) | 0.3335 (3) | 0.0808 (18) | |
C18 | 0.6784 (4) | 0.4641 (8) | 0.3554 (3) | 0.099 (2) | |
H18 | 0.7274 | 0.4612 | 0.3830 | 0.118* | |
C19 | 0.6457 (5) | 0.5651 (8) | 0.3371 (3) | 0.101 (2) | |
H19 | 0.6712 | 0.6315 | 0.3534 | 0.121* | |
C20 | 0.5729 (5) | 0.5711 (6) | 0.2933 (3) | 0.0904 (19) | |
C21 | 0.5337 (5) | 0.6744 (6) | 0.2707 (4) | 0.105 (3) | |
H21 | 0.5565 | 0.7433 | 0.2856 | 0.127* | |
C22 | 0.5374 (3) | 0.4659 (4) | 0.2729 (2) | 0.0542 (13) | |
C23 | 0.6749 (4) | 0.2515 (8) | 0.3539 (3) | 0.111 (3) | |
H23A | 0.6522 | 0.1949 | 0.3245 | 0.167* | |
H23B | 0.6655 | 0.2320 | 0.3910 | 0.167* | |
H23C | 0.7299 | 0.2550 | 0.3595 | 0.167* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Co1 | 0.0533 (5) | 0.0302 (4) | 0.0530 (4) | −0.0039 (3) | 0.0165 (3) | −0.0007 (3) |
O1 | 0.075 (3) | 0.048 (2) | 0.079 (3) | −0.002 (2) | 0.007 (2) | 0.0021 (19) |
O2 | 0.133 (4) | 0.035 (2) | 0.144 (4) | −0.020 (2) | 0.026 (3) | −0.015 (2) |
O3 | 0.070 (3) | 0.043 (2) | 0.078 (2) | −0.0033 (18) | 0.017 (2) | 0.0042 (17) |
O4 | 0.104 (3) | 0.041 (2) | 0.071 (2) | −0.0056 (19) | 0.048 (2) | −0.0030 (16) |
O5 | 0.371 (15) | 0.145 (7) | 0.204 (9) | −0.066 (8) | 0.118 (9) | −0.001 (6) |
N1 | 0.047 (2) | 0.040 (2) | 0.047 (2) | −0.0035 (17) | 0.0147 (18) | 0.0012 (16) |
N2 | 0.047 (2) | 0.035 (2) | 0.051 (2) | −0.0026 (18) | 0.0189 (19) | −0.0007 (17) |
N3 | 0.078 (3) | 0.060 (3) | 0.082 (3) | −0.016 (2) | 0.041 (3) | −0.010 (2) |
N4 | 0.129 (5) | 0.110 (5) | 0.136 (5) | −0.022 (4) | 0.092 (5) | −0.001 (4) |
N5 | 0.295 (11) | 0.124 (7) | 0.147 (7) | −0.022 (7) | 0.141 (8) | −0.015 (5) |
N6 | 0.084 (4) | 0.032 (3) | 0.082 (3) | −0.010 (2) | 0.022 (3) | −0.004 (2) |
N7 | 0.043 (2) | 0.062 (3) | 0.058 (2) | −0.001 (2) | 0.020 (2) | −0.004 (2) |
C1 | 0.054 (3) | 0.064 (3) | 0.051 (3) | −0.004 (3) | 0.014 (2) | 0.001 (3) |
C2 | 0.049 (3) | 0.112 (6) | 0.059 (3) | −0.008 (3) | 0.007 (3) | −0.003 (3) |
C3 | 0.055 (3) | 0.078 (4) | 0.075 (4) | −0.022 (3) | 0.017 (3) | −0.017 (3) |
C4 | 0.060 (3) | 0.057 (3) | 0.064 (3) | −0.023 (3) | 0.028 (3) | −0.017 (3) |
C5 | 0.082 (4) | 0.050 (3) | 0.083 (4) | −0.032 (3) | 0.034 (4) | −0.026 (3) |
C6 | 0.097 (5) | 0.037 (3) | 0.087 (4) | −0.015 (3) | 0.048 (4) | −0.013 (3) |
C7 | 0.071 (4) | 0.030 (2) | 0.069 (3) | −0.001 (2) | 0.036 (3) | −0.006 (2) |
C8 | 0.085 (4) | 0.034 (3) | 0.081 (4) | 0.015 (3) | 0.037 (3) | 0.009 (3) |
C9 | 0.066 (4) | 0.054 (3) | 0.076 (4) | 0.016 (3) | 0.021 (3) | 0.008 (3) |
C10 | 0.057 (3) | 0.042 (3) | 0.053 (3) | 0.006 (2) | 0.017 (2) | 0.002 (2) |
C11 | 0.052 (3) | 0.034 (2) | 0.050 (3) | −0.005 (2) | 0.023 (2) | −0.0062 (19) |
C12 | 0.050 (3) | 0.041 (3) | 0.052 (3) | −0.009 (2) | 0.025 (2) | −0.007 (2) |
C13 | 0.078 (4) | 0.073 (4) | 0.078 (4) | 0.012 (3) | 0.007 (3) | 0.021 (3) |
C14 | 0.061 (4) | 0.066 (4) | 0.074 (4) | −0.002 (3) | 0.003 (3) | −0.001 (3) |
C15 | 0.079 (4) | 0.045 (3) | 0.098 (4) | −0.009 (3) | 0.049 (4) | −0.010 (3) |
C16 | 0.160 (6) | 0.081 (5) | 0.128 (6) | −0.018 (4) | 0.105 (6) | −0.018 (5) |
C17 | 0.054 (4) | 0.130 (6) | 0.065 (3) | −0.010 (4) | 0.028 (3) | −0.011 (4) |
C18 | 0.066 (4) | 0.145 (6) | 0.088 (4) | −0.038 (4) | 0.028 (3) | −0.032 (4) |
C19 | 0.096 (5) | 0.118 (5) | 0.106 (5) | −0.066 (4) | 0.057 (4) | −0.047 (4) |
C20 | 0.114 (5) | 0.072 (4) | 0.112 (5) | −0.040 (4) | 0.075 (4) | −0.027 (3) |
C21 | 0.152 (7) | 0.053 (3) | 0.139 (7) | −0.025 (4) | 0.085 (5) | −0.023 (4) |
C22 | 0.061 (3) | 0.046 (3) | 0.071 (3) | −0.014 (2) | 0.043 (3) | −0.012 (2) |
C23 | 0.073 (5) | 0.174 (8) | 0.084 (5) | 0.046 (5) | 0.019 (4) | 0.030 (5) |
Co1—O4 | 2.037 (4) | C5—H5 | 0.9300 |
Co1—N3 | 2.053 (5) | C6—C7 | 1.425 (8) |
Co1—N1 | 2.120 (4) | C6—H6 | 0.9300 |
Co1—N2 | 2.122 (4) | C7—C8 | 1.397 (7) |
Co1—O3 | 2.180 (4) | C7—C11 | 1.405 (7) |
Co1—O1 | 2.224 (4) | C8—C9 | 1.350 (8) |
O1—N6 | 1.256 (6) | C8—H8 | 0.9300 |
O2—N6 | 1.220 (5) | C9—C10 | 1.408 (7) |
O3—N6 | 1.253 (6) | C9—H9 | 0.9300 |
O4—H1W | 0.8501 | C10—C14 | 1.491 (7) |
O4—H2W | 0.8500 | C11—C12 | 1.425 (7) |
O5—H3W | 0.8500 | C13—H13A | 0.9600 |
O5—H4W | 0.8501 | C13—H13B | 0.9600 |
N1—C1 | 1.336 (6) | C13—H13C | 0.9600 |
N1—C12 | 1.371 (6) | C14—H14A | 0.9600 |
N2—C10 | 1.325 (6) | C14—H14B | 0.9600 |
N2—C11 | 1.366 (6) | C14—H14C | 0.9600 |
N3—C15 | 1.126 (7) | C17—C18 | 1.398 (10) |
N4—C16 | 1.256 (11) | C17—C23 | 1.476 (11) |
N4—C15 | 1.276 (8) | C18—C19 | 1.339 (11) |
N5—C16 | 1.172 (11) | C18—H18 | 0.9300 |
N7—C17 | 1.336 (7) | C19—C20 | 1.410 (11) |
N7—C22 | 1.344 (7) | C19—H19 | 0.9300 |
C1—C2 | 1.406 (8) | C20—C22 | 1.411 (8) |
C1—C13 | 1.499 (8) | C20—C21 | 1.427 (10) |
C2—C3 | 1.349 (9) | C21—C21i | 1.314 (17) |
C2—H2 | 0.9300 | C21—H21 | 0.9300 |
C3—C4 | 1.419 (8) | C22—C22i | 1.455 (11) |
C3—H3 | 0.9300 | C23—H23A | 0.9600 |
C4—C12 | 1.398 (7) | C23—H23B | 0.9600 |
C4—C5 | 1.426 (8) | C23—H23C | 0.9600 |
C5—C6 | 1.337 (9) | ||
O4—Co1—N3 | 171.71 (16) | C9—C8—C7 | 120.8 (5) |
O4—Co1—N1 | 91.57 (16) | C9—C8—H8 | 119.6 |
N3—Co1—N1 | 96.13 (17) | C7—C8—H8 | 119.6 |
O4—Co1—N2 | 90.19 (14) | C8—C9—C10 | 119.8 (5) |
N3—Co1—N2 | 94.27 (17) | C8—C9—H9 | 120.1 |
N1—Co1—N2 | 78.95 (14) | C10—C9—H9 | 120.1 |
O4—Co1—O3 | 86.23 (14) | N2—C10—C9 | 121.2 (5) |
N3—Co1—O3 | 88.30 (17) | N2—C10—C14 | 118.1 (4) |
N1—Co1—O3 | 109.58 (15) | C9—C10—C14 | 120.7 (5) |
N2—Co1—O3 | 170.81 (15) | N2—C11—C7 | 122.4 (4) |
O4—Co1—O1 | 85.13 (16) | N2—C11—C12 | 117.9 (4) |
N3—Co1—O1 | 86.69 (17) | C7—C11—C12 | 119.7 (4) |
N1—Co1—O1 | 167.45 (15) | N1—C12—C4 | 123.1 (5) |
N2—Co1—O1 | 113.10 (14) | N1—C12—C11 | 117.5 (4) |
O3—Co1—O1 | 58.18 (14) | C4—C12—C11 | 119.3 (5) |
N6—O1—Co1 | 91.2 (3) | C1—C13—H13A | 109.5 |
N6—O3—Co1 | 93.4 (3) | C1—C13—H13B | 109.5 |
Co1—O4—H1W | 109.6 | H13A—C13—H13B | 109.5 |
Co1—O4—H2W | 121.9 | C1—C13—H13C | 109.5 |
H1W—O4—H2W | 111.2 | H13A—C13—H13C | 109.5 |
H3W—O5—H4W | 89.8 | H13B—C13—H13C | 109.5 |
C1—N1—C12 | 118.6 (4) | C10—C14—H14A | 109.5 |
C1—N1—Co1 | 128.6 (3) | C10—C14—H14B | 109.5 |
C12—N1—Co1 | 112.8 (3) | H14A—C14—H14B | 109.5 |
C10—N2—C11 | 119.2 (4) | C10—C14—H14C | 109.5 |
C10—N2—Co1 | 128.1 (3) | H14A—C14—H14C | 109.5 |
C11—N2—Co1 | 112.8 (3) | H14B—C14—H14C | 109.5 |
C15—N3—Co1 | 169.5 (5) | N3—C15—N4 | 173.6 (8) |
C16—N4—C15 | 122.4 (8) | N5—C16—N4 | 172.3 (10) |
O2—N6—O3 | 121.2 (5) | N7—C17—C18 | 120.5 (7) |
O2—N6—O1 | 121.6 (5) | N7—C17—C23 | 118.3 (7) |
O3—N6—O1 | 117.1 (4) | C18—C17—C23 | 121.2 (7) |
C17—N7—C22 | 119.3 (5) | C19—C18—C17 | 120.9 (7) |
N1—C1—C2 | 120.9 (5) | C19—C18—H18 | 119.6 |
N1—C1—C13 | 118.5 (5) | C17—C18—H18 | 119.6 |
C2—C1—C13 | 120.6 (5) | C18—C19—C20 | 120.3 (7) |
C3—C2—C1 | 121.1 (6) | C18—C19—H19 | 119.8 |
C3—C2—H2 | 119.4 | C20—C19—H19 | 119.8 |
C1—C2—H2 | 119.4 | C19—C20—C22 | 115.8 (7) |
C2—C3—C4 | 119.4 (5) | C19—C20—C21 | 124.5 (7) |
C2—C3—H3 | 120.3 | C22—C20—C21 | 119.7 (7) |
C4—C3—H3 | 120.3 | C21i—C21—C20 | 121.6 (4) |
C12—C4—C3 | 116.8 (5) | C21i—C21—H21 | 119.2 |
C12—C4—C5 | 119.8 (5) | C20—C21—H21 | 119.2 |
C3—C4—C5 | 123.4 (5) | N7—C22—C20 | 123.2 (6) |
C6—C5—C4 | 120.8 (5) | N7—C22—C22i | 118.2 (3) |
C6—C5—H5 | 119.6 | C20—C22—C22i | 118.7 (4) |
C4—C5—H5 | 119.6 | C17—C23—H23A | 109.5 |
C5—C6—C7 | 121.3 (5) | C17—C23—H23B | 109.5 |
C5—C6—H6 | 119.4 | H23A—C23—H23B | 109.5 |
C7—C6—H6 | 119.4 | C17—C23—H23C | 109.5 |
C8—C7—C11 | 116.7 (5) | H23A—C23—H23C | 109.5 |
C8—C7—C6 | 124.2 (5) | H23B—C23—H23C | 109.5 |
C11—C7—C6 | 119.1 (5) | ||
O4—Co1—O1—N6 | 90.4 (3) | C5—C6—C7—C8 | 179.8 (5) |
N3—Co1—O1—N6 | −88.2 (3) | C5—C6—C7—C11 | 0.5 (8) |
N1—Co1—O1—N6 | 15.2 (8) | C11—C7—C8—C9 | −0.1 (8) |
N2—Co1—O1—N6 | 178.5 (3) | C6—C7—C8—C9 | −179.5 (5) |
O3—Co1—O1—N6 | 1.8 (3) | C7—C8—C9—C10 | 0.5 (8) |
O4—Co1—O3—N6 | −88.4 (3) | C11—N2—C10—C9 | 0.6 (7) |
N3—Co1—O3—N6 | 85.3 (3) | Co1—N2—C10—C9 | −177.4 (4) |
N1—Co1—O3—N6 | −178.8 (3) | C11—N2—C10—C14 | −179.6 (4) |
O1—Co1—O3—N6 | −1.8 (3) | Co1—N2—C10—C14 | 2.4 (7) |
O4—Co1—N1—C1 | −90.8 (4) | C8—C9—C10—N2 | −0.8 (8) |
N3—Co1—N1—C1 | 86.1 (4) | C8—C9—C10—C14 | 179.3 (5) |
N2—Co1—N1—C1 | 179.3 (4) | C10—N2—C11—C7 | −0.1 (6) |
O3—Co1—N1—C1 | −4.3 (4) | Co1—N2—C11—C7 | 178.2 (3) |
O1—Co1—N1—C1 | −16.3 (9) | C10—N2—C11—C12 | 179.8 (4) |
O4—Co1—N1—C12 | 87.9 (3) | Co1—N2—C11—C12 | −1.9 (5) |
N3—Co1—N1—C12 | −95.2 (3) | C8—C7—C11—N2 | −0.1 (7) |
N2—Co1—N1—C12 | −2.0 (3) | C6—C7—C11—N2 | 179.3 (4) |
O3—Co1—N1—C12 | 174.4 (3) | C8—C7—C11—C12 | 180.0 (4) |
O1—Co1—N1—C12 | 162.4 (6) | C6—C7—C11—C12 | −0.6 (7) |
O4—Co1—N2—C10 | 88.7 (4) | C1—N1—C12—C4 | 0.4 (7) |
N3—Co1—N2—C10 | −84.3 (4) | Co1—N1—C12—C4 | −178.4 (4) |
N1—Co1—N2—C10 | −179.8 (4) | C1—N1—C12—C11 | −179.5 (4) |
O1—Co1—N2—C10 | 3.9 (4) | Co1—N1—C12—C11 | 1.7 (5) |
O4—Co1—N2—C11 | −89.4 (3) | C3—C4—C12—N1 | 1.1 (7) |
N3—Co1—N2—C11 | 97.5 (3) | C5—C4—C12—N1 | −179.5 (4) |
N1—Co1—N2—C11 | 2.1 (3) | C3—C4—C12—C11 | −179.0 (4) |
O1—Co1—N2—C11 | −174.2 (3) | C5—C4—C12—C11 | 0.4 (7) |
N1—Co1—N3—C15 | −113 (3) | N2—C11—C12—N1 | 0.2 (6) |
N2—Co1—N3—C15 | 167 (3) | C7—C11—C12—N1 | −179.9 (4) |
O3—Co1—N3—C15 | −4 (3) | N2—C11—C12—C4 | −179.7 (4) |
O1—Co1—N3—C15 | 55 (3) | C7—C11—C12—C4 | 0.2 (6) |
Co1—O3—N6—O2 | −174.5 (5) | C22—N7—C17—C18 | 1.8 (8) |
Co1—O3—N6—O1 | 3.1 (5) | C22—N7—C17—C23 | −178.1 (5) |
Co1—O1—N6—O2 | 174.5 (5) | N7—C17—C18—C19 | 0.8 (10) |
Co1—O1—N6—O3 | −3.0 (5) | C23—C17—C18—C19 | −179.3 (6) |
C12—N1—C1—C2 | −1.2 (7) | C17—C18—C19—C20 | −2.9 (11) |
Co1—N1—C1—C2 | 177.4 (4) | C18—C19—C20—C22 | 2.4 (10) |
C12—N1—C1—C13 | 178.9 (4) | C18—C19—C20—C21 | −179.6 (7) |
Co1—N1—C1—C13 | −2.5 (7) | C19—C20—C21—C21i | 179.3 (9) |
N1—C1—C2—C3 | 0.4 (9) | C22—C20—C21—C21i | −2.8 (14) |
C13—C1—C2—C3 | −179.8 (6) | C17—N7—C22—C20 | −2.2 (7) |
C1—C2—C3—C4 | 1.2 (9) | C17—N7—C22—C22i | 177.2 (5) |
C2—C3—C4—C12 | −1.9 (8) | C19—C20—C22—N7 | 0.1 (8) |
C2—C3—C4—C5 | 178.8 (5) | C21—C20—C22—N7 | −177.9 (6) |
C12—C4—C5—C6 | −0.5 (8) | C19—C20—C22—C22i | −179.3 (6) |
C3—C4—C5—C6 | 178.8 (5) | C21—C20—C22—C22i | 2.6 (9) |
C4—C5—C6—C7 | 0.1 (9) |
Symmetry code: (i) −x+1, y, −z+1/2. |
D—H···A | D—H | H···A | D···A | D—H···A |
O4—H1W···O5i | 0.85 | 2.57 | 3.111 (9) | 123 |
O4—H2W···N7 | 0.85 | 1.97 | 2.810 (6) | 167 |
O5—H3W···O4 | 0.85 | 2.39 | 2.941 (11) | 123 |
O5—H4W···N5ii | 0.85 | 2.25 | 2.830 (15) | 126 |
Symmetry codes: (i) −x+1, y, −z+1/2; (ii) −x+1, −y, −z+1. |
Experimental details
Crystal data | |
Chemical formula | 2[Co(C2N3)(NO3)(C14H12N2)(H2O)]·C14H12N2·2H2O |
Mr | 1070.82 |
Crystal system, space group | Monoclinic, C2/c |
Temperature (K) | 291 |
a, b, c (Å) | 17.993 (6), 11.770 (4), 23.428 (7) |
β (°) | 106.981 (4) |
V (Å3) | 4745 (3) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.77 |
Crystal size (mm) | 0.34 × 0.18 × 0.11 |
Data collection | |
Diffractometer | Bruker APEXII CCD area-detector |
Absorption correction | Multi-scan (SADABS; Bruker, 2004) |
Tmin, Tmax | 0.781, 0.917 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 17592, 4400, 2862 |
Rint | 0.070 |
(sin θ/λ)max (Å−1) | 0.606 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.066, 0.196, 1.04 |
No. of reflections | 4400 |
No. of parameters | 328 |
No. of restraints | 36 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 1.06, −0.58 |
Computer programs: APEX2 (Bruker, 2004), SAINT (Bruker, 2004), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008), publCIF (Westrip, 2010).
D—H···A | D—H | H···A | D···A | D—H···A |
O4—H1W···O5i | 0.85 | 2.57 | 3.111 (9) | 122.8 |
O4—H2W···N7 | 0.85 | 1.97 | 2.810 (6) | 167.3 |
O5—H4W···N5ii | 0.85 | 2.25 | 2.830 (15) | 125.5 |
Symmetry codes: (i) −x+1, y, −z+1/2; (ii) −x+1, −y, −z+1. |
Acknowledgements
Financial support from the National Natural Science Foundation of Henan Educational Committee (2011 A150018) is gratefully acknowledged.
References
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Metal-phenanthroline complexes and their derivatives have attracted much attention because of their peculiar features (Wang et al., 1996; Wall et al., 1999; Naing et al., 1995). Some Co(II)-phenanthroline complexes have been synthesized and structures were determined (Ding et al., 2006; Xuan & Zhao, 2007; Zhao et al., 2008). Recently, we obtained the title cobalt(II) complex, by reacting 2,9-dimethyl-1,10-phenanthroline, NaN(CN)2 and Co(NO3)2 in an ethanol/water mixture. The structure of the title compound, 2[Co(C14H12N2)N(CN)2NO3H2O].C14H12N2.2H2O is described below.
Each CoII ion is six-coordinated by two N atoms from a 2,9-dimethyl-1,10-phenanthroline ligand, two O atoms from a nitrate anion, one O atom from a water molecule and one N from a dicyanamide anion. The water and N3/C15/N4/C16/N5 ligands occupy the axial positions, with a N3—Co1—O4 bond angle of 171.71 (16)°. The CoII ion locates in the center, and CoO3N3 unit forms a distorted octahedral geometry. The uncoordinated dmphen molecule is placed on a crystallographic twofold axis (Fig. 1).
In the crystal structure, molecules are linked into a one-dimensional framework by O—H···N and O—H···O hydrogen bonds (Fig. 2). A partially overlapped arrangement of neighboring parallel Co1A-dmphen and Co1B-dmphen [symmetry code: (A) -x + 1, y, -z + 1/2; (B) -x + 1, -y + 1, -z + 1] rings with distance of 3.4065 (20) Å is observed. The shorter face-to-face separation clearly indicates the existence of π-π stacking between the dmphen rings. Uncoordinated N7A-dmphen and N7B-dmphen rings are also parallel with distance of 10.4286 (19) Å. In addition, the distance between the ring centroids Cg (C4A···C7A/C11A/C12A) and Cg (C17A···C20A/C22A/N7A) is 3.5641 (8) Å (Fig. 3). This value is close to the van der Waals thickness of the π-π stacking between nearly parallel dmphen (N7A-dmphen with Co1A-dmphen and Co1B-dmphen with N7B-dmphen) rings [dihedral angle: 3.4 (1)°].