


Supporting information
![]() | Crystallographic Information File (CIF) https://doi.org/10.1107/S1600536810032241/si2285sup1.cif |
![]() | Structure factor file (CIF format) https://doi.org/10.1107/S1600536810032241/si2285Isup2.hkl |
CCDC reference: 792283
Key indicators
- Single-crystal X-ray study
- T = 293 K
- Mean
(C-C) = 0.005 Å
- R factor = 0.051
- wR factor = 0.156
- Data-to-parameter ratio = 13.3
checkCIF/PLATON results
No syntax errors found
Alert level A PLAT900_ALERT_1_A No Matching Reflection File Found .............. ! PLAT900_ALERT_1_A No Matching Reflection File Found .............. ! PLAT902_ALERT_1_A No (Interpretable) Reflections found in FCF .... !
Alert level C PLAT241_ALERT_2_C Check High Ueq as Compared to Neighbors for C3 PLAT042_ALERT_1_C Calc. and Reported MoietyFormula Strings Differ ? PLAT125_ALERT_4_C No _symmetry_space_group_name_Hall Given ....... ? PLAT234_ALERT_4_C Large Hirshfeld Difference C10 -- C11 .. 0.16 Ang. PLAT244_ALERT_4_C Low 'Solvent' Ueq as Compared to Neighbors of N7 PLAT790_ALERT_4_C Centre of Gravity not Within Unit Cell: Resd. # 2 C H4 O PLAT790_ALERT_4_C Centre of Gravity not Within Unit Cell: Resd. # 3 C H4 O PLAT790_ALERT_4_C Centre of Gravity not Within Unit Cell: Resd. # 4 N O3
Alert level G PLAT432_ALERT_2_G Short Inter X...Y Contact O3 .. C40 .. 3.02 Ang. PLAT432_ALERT_2_G Short Inter X...Y Contact O5 .. C31 .. 3.00 Ang. PLAT199_ALERT_1_G Check the Reported _cell_measurement_temperature 293 K PLAT200_ALERT_1_G Check the Reported _diffrn_ambient_temperature 293 K
3 ALERT level A = In general: serious problem 0 ALERT level B = Potentially serious problem 8 ALERT level C = Check and explain 4 ALERT level G = General alerts; check 6 ALERT type 1 CIF construction/syntax error, inconsistent or missing data 3 ALERT type 2 Indicator that the structure model may be wrong or deficient 0 ALERT type 3 Indicator that the structure quality may be low 6 ALERT type 4 Improvement, methodology, query or suggestion 0 ALERT type 5 Informative message, check
A methanolic solution (25 ml) containing the ligand (0.2 mmol, 0.066 g) was added dropwise to Co(NO3)2.6H2O (0.1 mmol, 0.029 g). After stirring for 15 minutes, the dark solution was filtered. Red block-shaped crystals suitable for single-crystal X-ray diffraction were obtained by evaporating the resulting filtration in air for several days (yield: 56.2%). Anal calc (%). for C40H34Cl2CoN7O7: H 4.01 C 56.22 N 11.47. Found: H 4.12 C 56.32 N 11.21. The magnetic susceptibility χ was measured with a Quantum Design MPMS-5S SQUID magnetometer. Data were corrected for the diamagnetic contribution calculated from Pascal's constants.
C-bound H atoms were placed geometrically and allowed to ride during refinement with C—H = 0.93–0.96 Å with Uiso(H) = 1.2 Ueq(C). The hydroxy H atom of the methanol solvent molecule was located in a difference Fourier map and refined as riding with the parent atom with Uiso(H) = 1.5Ueq(O), O—H distances 0.82 and 0.85 Å.
The CoIII complex with the oxygen-containing Schiff-base ligand is important because of their ability to bind dioxygen. Among them, the most wanted targets include the artificial blood and respiratory systems. A novel aspect lies in the structural versatility of hexadentate Schiff-bases versus. imidazolidine complexes manifesting itself in a stabilization of various structural and optical isomers depending upon the chemical hardness of the metal centre (Herchel & Boca, 2005; Gavrilova et al., 2002).
Our recent work indicated the N,O-donor tridentate ligand is suitable for the synthesis of spin-crossover materials (Wu et al., 2009). One of the examples is reported by us, which interestingly showed the mixed-spin state and synergy between spin transition and magnetic interaction. Here, for the title compound, we used 2(E)-1-[(4-chlorophenyl)carbonyl]-2-[phenyl(pyridin-2-yl)methylidene] diazanide as ligand, a typical rigid tridentate donor to synthesize a mononuclear compound, and we report the crystal structure of the complex [Co(C19H13N3OCl)2]+(NO3)-(CH3OH)2 (Fig. 1). The coordination environments of CoIII ions are completed by two ligands with average Co—N bond length of 1.885 Å and Co—O 1.907 Å (Table 1). Classical hydrogen bonds O—H···O exist between both methanol solvent molecules and the nitrate anion with D···A distances between 2.747 (11) Å and 2.963 (12) Å (Table 2).
The temperature-dependent magnetic susceptibility was measured down to 1.8 K. In the χ.T versus T plot (Fig. 2), χ.T reaches a zero value within the whole temperature region, which is consistent with S = 0 ground state for cobalt(III).
For related work on the mononuclear cobalt compound, see: Herchel & Boca (2005). For a dimetallic dicobalt(II) complex, see: Gavrilova et al. (2002). For a spin-crossover FeII complex, see: Wu et al. (2009).
Data collection: SMART (Bruker, 1997); cell refinement: SAINT (Bruker, 1997); data reduction: SAINT (Bruker, 1997); 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: SHELXL97 (Sheldrick, 2008) and PLATON (Spek, 2009).
![]() | Fig. 1. The molecular structure of the title compound, the thermal ellipsoids were drawn at 30% probability level. |
![]() | Fig. 2. The temperature dependent curve χmT versus T for the title compound. |
[Co(C19H13ClN3O)2]NO3·2CH4O | F(000) = 1760 |
Mr = 854.57 | Dx = 1.448 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
a = 12.914 (8) Å | Cell parameters from 6478 reflections |
b = 17.423 (11) Å | θ = 2.0–29.8° |
c = 17.451 (11) Å | µ = 0.63 mm−1 |
β = 93.031 (8)° | T = 293 K |
V = 3921 (4) Å3 | Block, dark-red |
Z = 4 | 0.31 × 0.23 × 0.21 mm |
Bruker SMART APEXII CCD area-detector diffractometer | 6859 independent reflections |
Radiation source: fine-focus sealed tube | 4829 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.033 |
φ and ω scans | θmax = 25.0°, θmin = 2.2° |
Absorption correction: ψ scan (SADABS; Bruker, 1997) | h = −15→13 |
Tmin = 0.839, Tmax = 0.875 | k = −20→20 |
18168 measured reflections | l = −20→16 |
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)] = 0.051 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.156 | H-atom parameters constrained |
S = 1.07 | w = 1/[σ2(Fo2) + (0.0912P)2] where P = (Fo2 + 2Fc2)/3 |
6859 reflections | (Δ/σ)max < 0.001 |
516 parameters | Δρmax = 0.48 e Å−3 |
0 restraints | Δρmin = −0.39 e Å−3 |
[Co(C19H13ClN3O)2]NO3·2CH4O | V = 3921 (4) Å3 |
Mr = 854.57 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 12.914 (8) Å | µ = 0.63 mm−1 |
b = 17.423 (11) Å | T = 293 K |
c = 17.451 (11) Å | 0.31 × 0.23 × 0.21 mm |
β = 93.031 (8)° |
Bruker SMART APEXII CCD area-detector diffractometer | 6859 independent reflections |
Absorption correction: ψ scan (SADABS; Bruker, 1997) | 4829 reflections with I > 2σ(I) |
Tmin = 0.839, Tmax = 0.875 | Rint = 0.033 |
18168 measured reflections |
R[F2 > 2σ(F2)] = 0.051 | 0 restraints |
wR(F2) = 0.156 | H-atom parameters constrained |
S = 1.07 | Δρmax = 0.48 e Å−3 |
6859 reflections | Δρmin = −0.39 e Å−3 |
516 parameters |
Experimental. The magnetic measurements were performed on Quantum Design SQUID, MPMS-5S magnetometer. |
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 | ||
Co1 | 0.78242 (3) | 0.67158 (2) | 0.45385 (2) | 0.03739 (16) | |
Cl1 | 1.25567 (8) | 0.99362 (6) | 0.58995 (7) | 0.0794 (3) | |
C1 | 0.5964 (3) | 0.5811 (2) | 0.4093 (2) | 0.0584 (10) | |
H1A | 0.6374 | 0.5499 | 0.3801 | 0.070* | |
Cl2 | 0.87476 (11) | 0.29952 (6) | 0.76381 (6) | 0.0893 (4) | |
C2 | 0.4924 (3) | 0.5647 (3) | 0.4130 (3) | 0.0785 (13) | |
H2A | 0.4635 | 0.5232 | 0.3860 | 0.094* | |
C3 | 0.4327 (3) | 0.6090 (3) | 0.4561 (3) | 0.0953 (17) | |
H3A | 0.3628 | 0.5976 | 0.4598 | 0.143* | |
C4 | 0.4764 (3) | 0.6723 (2) | 0.4953 (3) | 0.0776 (13) | |
H4A | 0.4359 | 0.7038 | 0.5246 | 0.093* | |
C5 | 0.5800 (3) | 0.68681 (19) | 0.4894 (2) | 0.0499 (9) | |
C6 | 0.6359 (2) | 0.75209 (18) | 0.52701 (18) | 0.0428 (8) | |
C7 | 0.5881 (2) | 0.8070 (2) | 0.5784 (2) | 0.0494 (9) | |
C8 | 0.5451 (3) | 0.7802 (3) | 0.6441 (2) | 0.0721 (12) | |
H8A | 0.5458 | 0.7279 | 0.6551 | 0.087* | |
C9 | 0.5006 (4) | 0.8317 (3) | 0.6939 (3) | 0.0941 (16) | |
H9A | 0.4723 | 0.8140 | 0.7385 | 0.113* | |
C10 | 0.4986 (4) | 0.9092 (3) | 0.6767 (4) | 0.0972 (18) | |
H10A | 0.4676 | 0.9434 | 0.7093 | 0.117* | |
C11 | 0.5417 (3) | 0.9353 (3) | 0.6127 (3) | 0.0810 (13) | |
H11A | 0.5410 | 0.9876 | 0.6021 | 0.097* | |
C12 | 0.5867 (3) | 0.8852 (2) | 0.5631 (2) | 0.0618 (10) | |
H12A | 0.6161 | 0.9039 | 0.5193 | 0.074* | |
C13 | 0.8957 (2) | 0.78507 (16) | 0.51482 (16) | 0.0357 (7) | |
C14 | 0.9853 (2) | 0.83520 (16) | 0.53516 (17) | 0.0384 (7) | |
C15 | 0.9705 (3) | 0.90836 (18) | 0.5657 (2) | 0.0473 (8) | |
H15A | 0.9037 | 0.9249 | 0.5745 | 0.057* | |
C16 | 1.0538 (3) | 0.95642 (19) | 0.5829 (2) | 0.0541 (9) | |
H16A | 1.0436 | 1.0049 | 0.6035 | 0.065* | |
C17 | 1.1516 (3) | 0.9312 (2) | 0.5690 (2) | 0.0532 (9) | |
C18 | 1.1684 (3) | 0.8602 (2) | 0.5394 (2) | 0.0556 (9) | |
H18A | 1.2355 | 0.8447 | 0.5301 | 0.067* | |
C19 | 1.0863 (3) | 0.8113 (2) | 0.5233 (2) | 0.0501 (9) | |
H19A | 1.0982 | 0.7624 | 0.5044 | 0.060* | |
C20 | 0.9368 (3) | 0.47364 (19) | 0.2934 (2) | 0.0512 (9) | |
H20A | 0.9804 | 0.4804 | 0.3370 | 0.061* | |
C21 | 0.9521 (3) | 0.4125 (2) | 0.2450 (3) | 0.0675 (11) | |
H21A | 1.0063 | 0.3784 | 0.2560 | 0.081* | |
C22 | 0.8877 (4) | 0.4018 (2) | 0.1807 (2) | 0.0760 (13) | |
H22A | 0.8986 | 0.3605 | 0.1483 | 0.091* | |
C23 | 0.8071 (4) | 0.4517 (2) | 0.1639 (2) | 0.0698 (12) | |
H23A | 0.7630 | 0.4439 | 0.1207 | 0.084* | |
C24 | 0.7922 (3) | 0.5131 (2) | 0.2112 (2) | 0.0541 (9) | |
H24A | 0.7385 | 0.5474 | 0.1994 | 0.065* | |
C25 | 0.8568 (2) | 0.52489 (18) | 0.27717 (17) | 0.0408 (8) | |
C26 | 0.8359 (2) | 0.59022 (17) | 0.32795 (17) | 0.0391 (7) | |
C27 | 0.8125 (2) | 0.66884 (17) | 0.29955 (17) | 0.0406 (7) | |
C28 | 0.8283 (3) | 0.69599 (19) | 0.22675 (19) | 0.0501 (9) | |
H28A | 0.8529 | 0.6634 | 0.1896 | 0.060* | |
C29 | 0.8071 (3) | 0.7723 (2) | 0.2094 (2) | 0.0594 (10) | |
H29A | 0.8168 | 0.7909 | 0.1604 | 0.071* | |
C30 | 0.7716 (3) | 0.8203 (2) | 0.2648 (2) | 0.0594 (10) | |
H30A | 0.7573 | 0.8715 | 0.2537 | 0.071* | |
C31 | 0.7577 (3) | 0.79147 (19) | 0.3368 (2) | 0.0526 (9) | |
H31A | 0.7337 | 0.8238 | 0.3744 | 0.063* | |
C32 | 0.8300 (2) | 0.53820 (17) | 0.51756 (17) | 0.0386 (7) | |
C33 | 0.8387 (2) | 0.47777 (17) | 0.57681 (17) | 0.0373 (7) | |
C34 | 0.7889 (2) | 0.48666 (18) | 0.64438 (19) | 0.0435 (8) | |
H34A | 0.7487 | 0.5301 | 0.6514 | 0.052* | |
C35 | 0.7981 (3) | 0.43203 (19) | 0.7017 (2) | 0.0512 (9) | |
H35A | 0.7636 | 0.4383 | 0.7467 | 0.061* | |
C36 | 0.8591 (3) | 0.36758 (19) | 0.69139 (19) | 0.0516 (9) | |
C37 | 0.9087 (3) | 0.35630 (19) | 0.6240 (2) | 0.0504 (9) | |
H37A | 0.9486 | 0.3126 | 0.6172 | 0.061* | |
C38 | 0.8977 (3) | 0.41166 (17) | 0.56659 (19) | 0.0428 (8) | |
H38A | 0.9301 | 0.4045 | 0.5208 | 0.051* | |
N1 | 0.6394 (2) | 0.64084 (15) | 0.44688 (15) | 0.0445 (7) | |
N2 | 0.73280 (19) | 0.75294 (13) | 0.50965 (14) | 0.0372 (6) | |
N3 | 0.80414 (19) | 0.80719 (14) | 0.53669 (14) | 0.0390 (6) | |
N4 | 0.7780 (2) | 0.71727 (15) | 0.35430 (15) | 0.0423 (6) | |
N5 | 0.83192 (19) | 0.58678 (14) | 0.40247 (14) | 0.0388 (6) | |
N6 | 0.8493 (2) | 0.52095 (14) | 0.44585 (14) | 0.0406 (6) | |
O1 | 0.91181 (16) | 0.72240 (11) | 0.47687 (12) | 0.0416 (5) | |
O2 | 0.80192 (16) | 0.60633 (11) | 0.54059 (11) | 0.0412 (5) | |
O39 | 0.3498 (5) | 1.5978 (3) | 0.6311 (3) | 0.165 (2) | |
H39D | 0.3843 | 1.6034 | 0.6715 | 0.248* | |
C39 | 0.2696 (5) | 1.6509 (3) | 0.6272 (4) | 0.125 (2) | |
H39A | 0.2975 | 1.7016 | 0.6341 | 0.187* | |
H39B | 0.2228 | 1.6403 | 0.6669 | 0.187* | |
H39C | 0.2329 | 1.6474 | 0.5781 | 0.187* | |
C40 | 0.3173 (11) | 1.7336 (7) | 0.8722 (10) | 0.362 (12) | |
H40A | 0.3084 | 1.7797 | 0.9011 | 0.543* | |
H40B | 0.2507 | 1.7119 | 0.8580 | 0.543* | |
H40C | 0.3529 | 1.7453 | 0.8267 | 0.543* | |
O40 | 0.3808 (7) | 1.6761 (6) | 0.9207 (6) | 0.279 (4) | |
H40D | 0.4158 | 1.6491 | 0.8909 | 0.419* | |
O3 | 0.4443 (5) | 1.6345 (6) | 0.7710 (5) | 0.279 (5) | |
O4 | 0.5735 (5) | 1.5770 (3) | 0.7264 (4) | 0.179 (3) | |
O5 | 0.5666 (5) | 1.6126 (4) | 0.8508 (4) | 0.188 (3) | |
N7 | 0.5329 (5) | 1.6068 (4) | 0.7830 (5) | 0.130 (2) |
U11 | U22 | U33 | U12 | U13 | U23 | |
Co1 | 0.0474 (3) | 0.0359 (3) | 0.0290 (3) | 0.00039 (18) | 0.00347 (18) | −0.00440 (17) |
Cl1 | 0.0703 (7) | 0.0821 (7) | 0.0852 (8) | −0.0326 (6) | −0.0027 (6) | 0.0005 (6) |
C1 | 0.062 (2) | 0.057 (2) | 0.056 (2) | −0.0065 (18) | 0.0029 (19) | −0.0148 (18) |
Cl2 | 0.1574 (12) | 0.0600 (6) | 0.0515 (7) | 0.0127 (7) | 0.0158 (7) | 0.0175 (5) |
C2 | 0.062 (3) | 0.081 (3) | 0.093 (3) | −0.022 (2) | 0.004 (2) | −0.033 (3) |
C3 | 0.058 (3) | 0.106 (4) | 0.124 (5) | −0.025 (3) | 0.017 (3) | −0.042 (3) |
C4 | 0.054 (2) | 0.084 (3) | 0.096 (4) | −0.012 (2) | 0.014 (2) | −0.029 (3) |
C5 | 0.049 (2) | 0.051 (2) | 0.050 (2) | −0.0032 (16) | 0.0047 (16) | −0.0083 (16) |
C6 | 0.0439 (19) | 0.0461 (19) | 0.0386 (19) | 0.0027 (15) | 0.0043 (15) | −0.0054 (14) |
C7 | 0.0401 (19) | 0.058 (2) | 0.051 (2) | 0.0024 (16) | 0.0030 (16) | −0.0157 (17) |
C8 | 0.071 (3) | 0.075 (3) | 0.072 (3) | 0.006 (2) | 0.030 (2) | −0.006 (2) |
C9 | 0.088 (4) | 0.126 (5) | 0.072 (3) | 0.002 (3) | 0.037 (3) | −0.025 (3) |
C10 | 0.072 (3) | 0.103 (4) | 0.118 (5) | 0.013 (3) | 0.016 (3) | −0.055 (4) |
C11 | 0.072 (3) | 0.066 (3) | 0.105 (4) | 0.012 (2) | 0.007 (3) | −0.025 (3) |
C12 | 0.059 (2) | 0.057 (2) | 0.070 (3) | 0.0083 (18) | 0.008 (2) | −0.009 (2) |
C13 | 0.0474 (19) | 0.0366 (17) | 0.0238 (16) | 0.0003 (14) | 0.0072 (14) | −0.0009 (13) |
C14 | 0.0463 (18) | 0.0422 (18) | 0.0275 (16) | 0.0000 (14) | 0.0082 (14) | −0.0010 (13) |
C15 | 0.051 (2) | 0.0429 (19) | 0.048 (2) | −0.0008 (15) | 0.0092 (16) | −0.0030 (15) |
C16 | 0.067 (2) | 0.0420 (19) | 0.053 (2) | −0.0088 (17) | 0.0028 (19) | −0.0034 (16) |
C17 | 0.058 (2) | 0.060 (2) | 0.043 (2) | −0.0198 (18) | 0.0044 (17) | 0.0017 (17) |
C18 | 0.044 (2) | 0.070 (2) | 0.054 (2) | −0.0043 (18) | 0.0075 (17) | −0.0018 (19) |
C19 | 0.052 (2) | 0.055 (2) | 0.044 (2) | 0.0008 (16) | 0.0057 (16) | −0.0092 (16) |
C20 | 0.056 (2) | 0.050 (2) | 0.047 (2) | 0.0003 (17) | 0.0032 (17) | −0.0118 (16) |
C21 | 0.078 (3) | 0.054 (2) | 0.072 (3) | 0.0069 (19) | 0.019 (2) | −0.014 (2) |
C22 | 0.123 (4) | 0.051 (2) | 0.055 (3) | −0.014 (3) | 0.021 (3) | −0.023 (2) |
C23 | 0.106 (3) | 0.064 (3) | 0.039 (2) | −0.016 (2) | −0.002 (2) | −0.0195 (19) |
C24 | 0.072 (2) | 0.052 (2) | 0.038 (2) | −0.0066 (18) | −0.0035 (17) | −0.0052 (16) |
C25 | 0.052 (2) | 0.0423 (18) | 0.0292 (17) | −0.0092 (15) | 0.0079 (15) | −0.0073 (13) |
C26 | 0.0453 (18) | 0.0419 (18) | 0.0302 (18) | −0.0010 (14) | 0.0011 (14) | −0.0064 (13) |
C27 | 0.0507 (19) | 0.0435 (18) | 0.0271 (17) | −0.0018 (14) | −0.0014 (14) | −0.0068 (13) |
C28 | 0.072 (2) | 0.048 (2) | 0.0307 (19) | −0.0016 (17) | 0.0037 (16) | −0.0064 (15) |
C29 | 0.088 (3) | 0.055 (2) | 0.035 (2) | −0.0024 (19) | −0.0003 (19) | 0.0044 (17) |
C30 | 0.084 (3) | 0.046 (2) | 0.047 (2) | 0.0085 (18) | 0.000 (2) | 0.0079 (17) |
C31 | 0.073 (2) | 0.045 (2) | 0.041 (2) | 0.0108 (17) | 0.0037 (17) | −0.0017 (16) |
C32 | 0.0461 (18) | 0.0359 (17) | 0.0339 (18) | −0.0040 (14) | 0.0016 (14) | −0.0049 (13) |
C33 | 0.0436 (18) | 0.0383 (17) | 0.0301 (17) | −0.0037 (13) | 0.0015 (14) | −0.0062 (13) |
C34 | 0.051 (2) | 0.0398 (18) | 0.0396 (19) | 0.0005 (14) | 0.0045 (15) | −0.0051 (14) |
C35 | 0.068 (2) | 0.051 (2) | 0.036 (2) | −0.0028 (17) | 0.0147 (17) | −0.0049 (16) |
C36 | 0.078 (2) | 0.0405 (19) | 0.036 (2) | −0.0068 (17) | 0.0023 (18) | 0.0011 (15) |
C37 | 0.067 (2) | 0.0368 (18) | 0.047 (2) | 0.0045 (16) | 0.0025 (18) | −0.0014 (15) |
C38 | 0.054 (2) | 0.0405 (18) | 0.0342 (18) | −0.0029 (15) | 0.0056 (15) | −0.0042 (14) |
N1 | 0.0515 (16) | 0.0400 (15) | 0.0417 (16) | −0.0025 (12) | −0.0008 (13) | −0.0061 (12) |
N2 | 0.0439 (16) | 0.0364 (14) | 0.0312 (15) | −0.0005 (11) | 0.0014 (11) | −0.0027 (11) |
N3 | 0.0439 (16) | 0.0395 (14) | 0.0340 (15) | −0.0017 (12) | 0.0055 (12) | −0.0058 (11) |
N4 | 0.0499 (16) | 0.0430 (16) | 0.0338 (15) | 0.0029 (12) | 0.0010 (12) | −0.0015 (12) |
N5 | 0.0501 (16) | 0.0365 (14) | 0.0297 (15) | −0.0007 (11) | 0.0018 (12) | −0.0017 (11) |
N6 | 0.0547 (17) | 0.0359 (14) | 0.0313 (15) | 0.0005 (12) | 0.0023 (12) | −0.0033 (11) |
O1 | 0.0467 (12) | 0.0415 (12) | 0.0370 (13) | 0.0015 (9) | 0.0051 (10) | −0.0085 (10) |
O2 | 0.0580 (13) | 0.0369 (12) | 0.0291 (12) | 0.0029 (10) | 0.0052 (10) | −0.0041 (9) |
O39 | 0.203 (5) | 0.130 (4) | 0.168 (5) | −0.012 (4) | 0.056 (4) | −0.046 (3) |
C39 | 0.120 (5) | 0.086 (4) | 0.173 (7) | 0.009 (4) | 0.054 (4) | −0.013 (4) |
C40 | 0.288 (16) | 0.233 (14) | 0.54 (3) | 0.011 (11) | −0.218 (17) | 0.054 (16) |
O40 | 0.248 (9) | 0.326 (11) | 0.263 (10) | −0.029 (7) | 0.013 (7) | −0.119 (8) |
O3 | 0.135 (5) | 0.431 (12) | 0.269 (9) | 0.069 (6) | 0.003 (5) | 0.133 (9) |
O4 | 0.156 (5) | 0.140 (4) | 0.245 (7) | −0.034 (3) | 0.060 (5) | −0.033 (4) |
O5 | 0.145 (5) | 0.209 (6) | 0.206 (7) | −0.063 (4) | −0.034 (4) | 0.095 (5) |
N7 | 0.088 (4) | 0.115 (5) | 0.188 (8) | −0.012 (3) | 0.000 (5) | 0.069 (5) |
Co1—N2 | 1.853 (3) | C21—H21A | 0.9300 |
Co1—N5 | 1.859 (3) | C22—C23 | 1.377 (6) |
Co1—O2 | 1.899 (2) | C22—H22A | 0.9300 |
Co1—N4 | 1.909 (3) | C23—C24 | 1.371 (5) |
Co1—O1 | 1.915 (2) | C23—H23A | 0.9300 |
Co1—N1 | 1.921 (3) | C24—C25 | 1.400 (5) |
Cl1—C17 | 1.752 (3) | C24—H24A | 0.9300 |
C1—N1 | 1.336 (4) | C25—C26 | 1.476 (4) |
C1—C2 | 1.378 (5) | C26—N5 | 1.306 (4) |
C1—H1A | 0.9300 | C26—C27 | 1.482 (4) |
Cl2—C36 | 1.737 (3) | C27—N4 | 1.367 (4) |
C2—C3 | 1.347 (6) | C27—C28 | 1.381 (5) |
C2—H2A | 0.9300 | C28—C29 | 1.387 (5) |
C3—C4 | 1.400 (6) | C28—H28A | 0.9300 |
C3—H3A | 0.9300 | C29—C30 | 1.375 (5) |
C4—C5 | 1.371 (5) | C29—H29A | 0.9300 |
C4—H4A | 0.9300 | C30—C31 | 1.374 (5) |
C5—N1 | 1.357 (4) | C30—H30A | 0.9300 |
C5—C6 | 1.481 (4) | C31—N4 | 1.351 (4) |
C6—N2 | 1.304 (4) | C31—H31A | 0.9300 |
C6—C7 | 1.469 (4) | C32—O2 | 1.310 (3) |
C7—C8 | 1.381 (5) | C32—N6 | 1.324 (4) |
C7—C12 | 1.390 (5) | C32—C33 | 1.476 (4) |
C8—C9 | 1.394 (6) | C33—C34 | 1.381 (4) |
C8—H8A | 0.9300 | C33—C38 | 1.398 (4) |
C9—C10 | 1.382 (7) | C34—C35 | 1.381 (5) |
C9—H9A | 0.9300 | C34—H34A | 0.9300 |
C10—C11 | 1.353 (7) | C35—C36 | 1.389 (5) |
C10—H10A | 0.9300 | C35—H35A | 0.9300 |
C11—C12 | 1.378 (5) | C36—C37 | 1.382 (5) |
C11—H11A | 0.9300 | C37—C38 | 1.393 (4) |
C12—H12A | 0.9300 | C37—H37A | 0.9300 |
C13—O1 | 1.299 (3) | C38—H38A | 0.9300 |
C13—N3 | 1.320 (4) | N2—N3 | 1.385 (3) |
C13—C14 | 1.478 (4) | N5—N6 | 1.386 (3) |
C14—C19 | 1.395 (5) | O39—C39 | 1.387 (7) |
C14—C15 | 1.398 (4) | O39—H39D | 0.8200 |
C15—C16 | 1.383 (5) | C39—H39A | 0.9600 |
C15—H15A | 0.9300 | C39—H39B | 0.9600 |
C16—C17 | 1.371 (5) | C39—H39C | 0.9600 |
C16—H16A | 0.9300 | C40—O40 | 1.523 (12) |
C17—C18 | 1.362 (5) | C40—H40A | 0.9600 |
C18—C19 | 1.378 (5) | C40—H40B | 0.9600 |
C18—H18A | 0.9300 | C40—H40C | 0.9600 |
C19—H19A | 0.9300 | O40—H40D | 0.8500 |
C20—C21 | 1.380 (5) | O3—N7 | 1.249 (7) |
C20—C25 | 1.383 (5) | O4—N7 | 1.256 (8) |
C20—H20A | 0.9300 | O5—N7 | 1.243 (8) |
C21—C22 | 1.373 (6) | ||
N2—Co1—N5 | 176.99 (11) | C24—C23—C22 | 119.5 (4) |
N2—Co1—O2 | 94.25 (11) | C24—C23—H23A | 120.2 |
N5—Co1—O2 | 82.78 (10) | C22—C23—H23A | 120.2 |
N2—Co1—N4 | 99.48 (11) | C23—C24—C25 | 120.9 (4) |
N5—Co1—N4 | 83.51 (11) | C23—C24—H24A | 119.5 |
O2—Co1—N4 | 166.22 (10) | C25—C24—H24A | 119.5 |
N2—Co1—O1 | 81.85 (10) | C20—C25—C24 | 118.6 (3) |
N5—Co1—O1 | 98.64 (10) | C20—C25—C26 | 122.2 (3) |
O2—Co1—O1 | 91.84 (9) | C24—C25—C26 | 119.1 (3) |
N4—Co1—O1 | 88.96 (10) | N5—C26—C25 | 125.5 (3) |
N2—Co1—N1 | 83.59 (11) | N5—C26—C27 | 111.0 (3) |
N5—Co1—N1 | 95.86 (11) | C25—C26—C27 | 123.5 (3) |
O2—Co1—N1 | 88.29 (10) | N4—C27—C28 | 120.1 (3) |
N4—Co1—N1 | 94.38 (11) | N4—C27—C26 | 113.9 (3) |
O1—Co1—N1 | 165.41 (10) | C28—C27—C26 | 126.0 (3) |
N1—C1—C2 | 121.3 (3) | C27—C28—C29 | 119.5 (3) |
N1—C1—H1A | 119.4 | C27—C28—H28A | 120.3 |
C2—C1—H1A | 119.4 | C29—C28—H28A | 120.3 |
C3—C2—C1 | 119.6 (4) | C30—C29—C28 | 119.9 (3) |
C3—C2—H2A | 120.2 | C30—C29—H29A | 120.0 |
C1—C2—H2A | 120.2 | C28—C29—H29A | 120.0 |
C2—C3—C4 | 119.8 (4) | C31—C30—C29 | 119.0 (3) |
C2—C3—H3A | 120.1 | C31—C30—H30A | 120.5 |
C4—C3—H3A | 120.1 | C29—C30—H30A | 120.5 |
C5—C4—C3 | 118.6 (4) | N4—C31—C30 | 121.5 (3) |
C5—C4—H4A | 120.7 | N4—C31—H31A | 119.2 |
C3—C4—H4A | 120.7 | C30—C31—H31A | 119.2 |
N1—C5—C4 | 120.9 (3) | O2—C32—N6 | 124.4 (3) |
N1—C5—C6 | 114.8 (3) | O2—C32—C33 | 116.3 (3) |
C4—C5—C6 | 124.3 (3) | N6—C32—C33 | 119.3 (3) |
N2—C6—C7 | 125.0 (3) | C34—C33—C38 | 118.9 (3) |
N2—C6—C5 | 110.9 (3) | C34—C33—C32 | 119.8 (3) |
C7—C6—C5 | 124.0 (3) | C38—C33—C32 | 121.4 (3) |
C8—C7—C12 | 119.3 (3) | C35—C34—C33 | 121.0 (3) |
C8—C7—C6 | 119.2 (3) | C35—C34—H34A | 119.5 |
C12—C7—C6 | 121.5 (3) | C33—C34—H34A | 119.5 |
C7—C8—C9 | 119.7 (4) | C34—C35—C36 | 119.4 (3) |
C7—C8—H8A | 120.1 | C34—C35—H35A | 120.3 |
C9—C8—H8A | 120.1 | C36—C35—H35A | 120.3 |
C10—C9—C8 | 119.9 (5) | C37—C36—C35 | 121.1 (3) |
C10—C9—H9A | 120.1 | C37—C36—Cl2 | 118.7 (3) |
C8—C9—H9A | 120.1 | C35—C36—Cl2 | 120.2 (3) |
C11—C10—C9 | 120.2 (4) | C36—C37—C38 | 118.6 (3) |
C11—C10—H10A | 119.9 | C36—C37—H37A | 120.7 |
C9—C10—H10A | 119.9 | C38—C37—H37A | 120.7 |
C10—C11—C12 | 120.7 (4) | C37—C38—C33 | 121.0 (3) |
C10—C11—H11A | 119.6 | C37—C38—H38A | 119.5 |
C12—C11—H11A | 119.6 | C33—C38—H38A | 119.5 |
C11—C12—C7 | 120.1 (4) | C1—N1—C5 | 119.8 (3) |
C11—C12—H12A | 119.9 | C1—N1—Co1 | 128.4 (2) |
C7—C12—H12A | 119.9 | C5—N1—Co1 | 111.7 (2) |
O1—C13—N3 | 124.2 (3) | C6—N2—N3 | 123.9 (2) |
O1—C13—C14 | 118.4 (3) | C6—N2—Co1 | 118.4 (2) |
N3—C13—C14 | 117.4 (3) | N3—N2—Co1 | 117.31 (19) |
C19—C14—C15 | 118.4 (3) | C13—N3—N2 | 107.0 (2) |
C19—C14—C13 | 120.9 (3) | C31—N4—C27 | 120.0 (3) |
C15—C14—C13 | 120.6 (3) | C31—N4—Co1 | 126.9 (2) |
C16—C15—C14 | 121.0 (3) | C27—N4—Co1 | 112.5 (2) |
C16—C15—H15A | 119.5 | C26—N5—N6 | 124.6 (3) |
C14—C15—H15A | 119.5 | C26—N5—Co1 | 118.5 (2) |
C17—C16—C15 | 118.7 (3) | N6—N5—Co1 | 116.38 (19) |
C17—C16—H16A | 120.6 | C32—N6—N5 | 107.2 (2) |
C15—C16—H16A | 120.6 | C13—O1—Co1 | 109.54 (19) |
C18—C17—C16 | 121.6 (3) | C32—O2—Co1 | 108.96 (18) |
C18—C17—Cl1 | 120.5 (3) | C39—O39—H39D | 109.5 |
C16—C17—Cl1 | 117.9 (3) | O39—C39—H39A | 109.5 |
C17—C18—C19 | 120.2 (3) | O39—C39—H39B | 109.5 |
C17—C18—H18A | 119.9 | H39A—C39—H39B | 109.5 |
C19—C18—H18A | 119.9 | O39—C39—H39C | 109.5 |
C18—C19—C14 | 120.0 (3) | H39A—C39—H39C | 109.5 |
C18—C19—H19A | 120.0 | H39B—C39—H39C | 109.5 |
C14—C19—H19A | 120.0 | O40—C40—H40A | 109.5 |
C21—C20—C25 | 120.2 (3) | O40—C40—H40B | 109.5 |
C21—C20—H20A | 119.9 | H40A—C40—H40B | 109.5 |
C25—C20—H20A | 119.9 | O40—C40—H40C | 109.5 |
C22—C21—C20 | 120.3 (4) | H40A—C40—H40C | 109.5 |
C22—C21—H21A | 119.9 | H40B—C40—H40C | 109.5 |
C20—C21—H21A | 119.9 | C40—O40—H40D | 108.1 |
C21—C22—C23 | 120.5 (4) | O5—N7—O3 | 113.6 (9) |
C21—C22—H22A | 119.8 | O5—N7—O4 | 130.0 (8) |
C23—C22—H22A | 119.8 | O3—N7—O4 | 116.4 (9) |
D—H···A | D—H | H···A | D···A | D—H···A |
O39—H39D···O3 | 0.82 | 1.94 | 2.747 (11) | 167 |
O40—H40D···O3 | 0.85 | 2.16 | 2.873 (12) | 142 |
O40—H40D···O5 | 0.85 | 2.20 | 2.963 (12) | 150 |
Experimental details
Crystal data | |
Chemical formula | [Co(C19H13ClN3O)2]NO3·2CH4O |
Mr | 854.57 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 293 |
a, b, c (Å) | 12.914 (8), 17.423 (11), 17.451 (11) |
β (°) | 93.031 (8) |
V (Å3) | 3921 (4) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.63 |
Crystal size (mm) | 0.31 × 0.23 × 0.21 |
Data collection | |
Diffractometer | Bruker SMART APEXII CCD area-detector |
Absorption correction | ψ scan (SADABS; Bruker, 1997) |
Tmin, Tmax | 0.839, 0.875 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 18168, 6859, 4829 |
Rint | 0.033 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.051, 0.156, 1.07 |
No. of reflections | 6859 |
No. of parameters | 516 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.48, −0.39 |
Computer programs: SMART (Bruker, 1997), SAINT (Bruker, 1997), SHELXS97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008) and PLATON (Spek, 2009).
Co1—N2 | 1.853 (3) | Co1—N4 | 1.909 (3) |
Co1—N5 | 1.859 (3) | Co1—O1 | 1.915 (2) |
Co1—O2 | 1.899 (2) | Co1—N1 | 1.921 (3) |
D—H···A | D—H | H···A | D···A | D—H···A |
O39—H39D···O3 | 0.82 | 1.94 | 2.747 (11) | 167.4 |
O40—H40D···O3 | 0.85 | 2.16 | 2.873 (12) | 141.6 |
O40—H40D···O5 | 0.85 | 2.20 | 2.963 (12) | 149.8 |
The CoIII complex with the oxygen-containing Schiff-base ligand is important because of their ability to bind dioxygen. Among them, the most wanted targets include the artificial blood and respiratory systems. A novel aspect lies in the structural versatility of hexadentate Schiff-bases versus. imidazolidine complexes manifesting itself in a stabilization of various structural and optical isomers depending upon the chemical hardness of the metal centre (Herchel & Boca, 2005; Gavrilova et al., 2002).
Our recent work indicated the N,O-donor tridentate ligand is suitable for the synthesis of spin-crossover materials (Wu et al., 2009). One of the examples is reported by us, which interestingly showed the mixed-spin state and synergy between spin transition and magnetic interaction. Here, for the title compound, we used 2(E)-1-[(4-chlorophenyl)carbonyl]-2-[phenyl(pyridin-2-yl)methylidene] diazanide as ligand, a typical rigid tridentate donor to synthesize a mononuclear compound, and we report the crystal structure of the complex [Co(C19H13N3OCl)2]+(NO3)-(CH3OH)2 (Fig. 1). The coordination environments of CoIII ions are completed by two ligands with average Co—N bond length of 1.885 Å and Co—O 1.907 Å (Table 1). Classical hydrogen bonds O—H···O exist between both methanol solvent molecules and the nitrate anion with D···A distances between 2.747 (11) Å and 2.963 (12) Å (Table 2).
The temperature-dependent magnetic susceptibility was measured down to 1.8 K. In the χ.T versus T plot (Fig. 2), χ.T reaches a zero value within the whole temperature region, which is consistent with S = 0 ground state for cobalt(III).