The title compound, [Co(C
2H
3O
2)
2(C
12H
8N
2)]
n, is a polymeric complex involving bridging of Co
II ions by single
syn-anti acetate ligands. Each Co atom is five-coordinated by two 1,10-phenanthroline N atoms and three O atoms of acetate ligands within a bipyramidal coordination geometry. In the crystal structure, C—H
O hydrogen bonds result in the formation of a polymeric ribbon structure.
Supporting information
CCDC reference: 1220603
Key indicators
- Single-crystal X-ray study
- T = 273 K
- Mean (C-C) = 0.005 Å
- R factor = 0.042
- wR factor = 0.127
- Data-to-parameter ratio = 13.2
checkCIF/PLATON results
No syntax errors found
Alert level B
PLAT362_ALERT_2_B Short C(sp3)-C(sp2) Bond C13 - C14 ... 1.22 Ang.
PLAT362_ALERT_2_B Short C(sp3)-C(sp2) Bond C15 - C16 ... 1.23 Ang.
PLAT411_ALERT_2_B Short Inter H...H Contact H5 .. H14B .. 2.02 Ang.
PLAT413_ALERT_2_B Short Inter XH3 .. XHn H2 .. H16A .. 1.98 Ang.
PLAT413_ALERT_2_B Short Inter XH3 .. XHn H5 .. H16B .. 2.01 Ang.
PLAT430_ALERT_2_B Short Inter D...A Contact O2 .. O3 .. 2.82 Ang.
Alert level C
PLAT029_ALERT_3_C _diffrn_measured_fraction_theta_full Low ....... 0.96
PLAT230_ALERT_2_C Hirshfeld Test Diff for O2 - C15 .. 5.49 su
PLAT230_ALERT_2_C Hirshfeld Test Diff for C13 - C14 .. 6.53 su
PLAT232_ALERT_2_C Hirshfeld Test Diff (M-X) Co1 - O1 .. 9.50 su
PLAT232_ALERT_2_C Hirshfeld Test Diff (M-X) Co1 - O2 .. 7.34 su
PLAT232_ALERT_2_C Hirshfeld Test Diff (M-X) Co1 - N1 .. 9.12 su
PLAT232_ALERT_2_C Hirshfeld Test Diff (M-X) Co1 - N2 .. 8.56 su
PLAT241_ALERT_2_C Check High Ueq as Compared to Neighbors for O2
PLAT242_ALERT_2_C Check Low Ueq as Compared to Neighbors for C15
Alert level G
PLAT794_ALERT_5_G Check Predicted Bond Valency for Co1 (9) 2.26
PLAT860_ALERT_3_G Note: Number of Least-Squares Restraints ....... 2
0 ALERT level A = In general: serious problem
6 ALERT level B = Potentially serious problem
9 ALERT level C = Check and explain
2 ALERT level G = General alerts; check
0 ALERT type 1 CIF construction/syntax error, inconsistent or missing data
14 ALERT type 2 Indicator that the structure model may be wrong or deficient
2 ALERT type 3 Indicator that the structure quality may be low
0 ALERT type 4 Improvement, methodology, query or suggestion
1 ALERT type 5 Informative message, check
Crystals of the title compound were synthesized using hydrothermal method in a
23 ml Teflon-lined Parr bomb. Cobalt (II) nitrate hexahydrate (291.1 mg, 1 mmol), phen (180.2 mg, 1 mmol), acetic acid (120.1 mg, 2 mmol), ammonia (4 ml,
0.5 mol/l) and distilled water (10 g) were placed into the bomb and sealed.
The bomb was then heated under autogenous pressure up to 453 K over the course
of 7 d and allowed to cool at room temperature for 24 h. Upon opening the
bomb, a clear colorless solution was decanted from small pink crystals. These
crystals were washed with distilled water followed by ethanol, and allowed to
air-dry at room temperature.
H atoms were positioned geometrically, with C—H = 0.93 and 0.96 Å, for
aromatic and methyl H atoms and constrained to ride on their parent atoms,
with Uiso(H) = xUeq(C), where x = 1.5 for methyl H
and x = 1.2 for aromatic H atoms.
Data collection: SMART (Siemens, 1996); cell refinement: SAINT (Siemens, 1996); data reduction: SAINT (Siemens, 1996); program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: SHELXTL (Siemens, 1996); software used to prepare material for publication: SHELXTL (Siemens, 1996).
catena-Poly[[(acetato-
κO)(1,10-phenanthroline-
κ2N,
N')cobalt(II)]-µ- acetato-
κ2O:
O']
top
Crystal data top
[Co(C2H3O2)2(C12H8N2)] | F(000) = 732 |
Mr = 357.22 | Dx = 1.788 Mg m−3 |
Monoclinic, P21/n | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -p 2yn | Cell parameters from 5524 reflections |
a = 8.6864 (17) Å | θ = 2.3–28.0° |
b = 9.183 (2) Å | µ = 1.32 mm−1 |
c = 17.0024 (11) Å | T = 273 K |
β = 101.897 (4)° | Prism, pink |
V = 1327.1 (4) Å3 | 0.41 × 0.24 × 0.20 mm |
Z = 4 | |
Data collection top
Bruker SMART CCD area-detector diffractometer | 2779 independent reflections |
Radiation source: fine-focus sealed tube | 2349 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.017 |
ϕ and ω scans | θmax = 27.0°, θmin = 2.5° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −11→11 |
Tmin = 0.617, Tmax = 0.774 | k = −11→11 |
8683 measured reflections | l = −21→21 |
Refinement top
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)] = 0.042 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.127 | H-atom parameters constrained |
S = 1.03 | w = 1/[σ2(Fo2) + (0.0915P)2 + 0.5483P] where P = (Fo2 + 2Fc2)/3 |
2779 reflections | (Δ/σ)max < 0.001 |
210 parameters | Δρmax = 0.69 e Å−3 |
2 restraints | Δρmin = −0.51 e Å−3 |
Crystal data top
[Co(C2H3O2)2(C12H8N2)] | V = 1327.1 (4) Å3 |
Mr = 357.22 | Z = 4 |
Monoclinic, P21/n | Mo Kα radiation |
a = 8.6864 (17) Å | µ = 1.32 mm−1 |
b = 9.183 (2) Å | T = 273 K |
c = 17.0024 (11) Å | 0.41 × 0.24 × 0.20 mm |
β = 101.897 (4)° | |
Data collection top
Bruker SMART CCD area-detector diffractometer | 2779 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 2349 reflections with I > 2σ(I) |
Tmin = 0.617, Tmax = 0.774 | Rint = 0.017 |
8683 measured reflections | |
Refinement top
R[F2 > 2σ(F2)] = 0.042 | 2 restraints |
wR(F2) = 0.127 | H-atom parameters constrained |
S = 1.03 | Δρmax = 0.69 e Å−3 |
2779 reflections | Δρmin = −0.51 e Å−3 |
210 parameters | |
Special details top
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. |
Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top | x | y | z | Uiso*/Ueq | |
Co1 | 0.66505 (4) | 0.92788 (4) | 0.803184 (19) | 0.03316 (17) | |
O1 | 0.6876 (3) | 0.7352 (2) | 0.75202 (12) | 0.0458 (5) | |
O2 | 0.5483 (3) | 1.0049 (3) | 0.70205 (13) | 0.0530 (6) | |
O3 | 0.6215 (3) | 0.5047 (2) | 0.74862 (15) | 0.0528 (6) | |
O4 | 0.3286 (3) | 1.0280 (4) | 0.62132 (17) | 0.0706 (8) | |
N1 | 0.6077 (3) | 1.0939 (3) | 0.86847 (16) | 0.0412 (5) | |
N2 | 0.7957 (3) | 0.8671 (3) | 0.90793 (14) | 0.0393 (5) | |
C1 | 0.5195 (4) | 1.2113 (4) | 0.8471 (2) | 0.0489 (7) | |
H1 | 0.4800 | 1.2274 | 0.7927 | 0.059* | |
C2 | 0.4838 (4) | 1.3105 (4) | 0.9017 (2) | 0.0546 (8) | |
H2 | 0.4234 | 1.3922 | 0.8837 | 0.065* | |
C3 | 0.5366 (4) | 1.2887 (4) | 0.9811 (2) | 0.0531 (8) | |
H3 | 0.5101 | 1.3531 | 1.0184 | 0.064* | |
C4 | 0.6330 (3) | 1.1659 (3) | 1.00699 (18) | 0.0424 (6) | |
C5 | 0.6983 (4) | 1.1338 (4) | 1.0880 (2) | 0.0515 (8) | |
H5 | 0.6746 | 1.1926 | 1.1284 | 0.062* | |
C6 | 0.7946 (4) | 1.0188 (4) | 1.10743 (19) | 0.0495 (7) | |
H6 | 0.8355 | 0.9995 | 1.1614 | 0.059* | |
C7 | 0.8360 (4) | 0.9255 (3) | 1.04817 (18) | 0.0416 (6) | |
C8 | 0.9430 (4) | 0.8077 (4) | 1.06368 (18) | 0.0474 (7) | |
H8 | 0.9931 | 0.7862 | 1.1162 | 0.057* | |
C9 | 0.9723 (4) | 0.7262 (4) | 1.0018 (2) | 0.0505 (7) | |
H9 | 1.0434 | 0.6493 | 1.0117 | 0.061* | |
C10 | 0.8957 (4) | 0.7581 (3) | 0.92380 (19) | 0.0466 (7) | |
H10 | 0.9154 | 0.7011 | 0.8817 | 0.056* | |
C11 | 0.7671 (3) | 0.9514 (3) | 0.96843 (17) | 0.0370 (6) | |
C12 | 0.6651 (3) | 1.0725 (3) | 0.94750 (18) | 0.0367 (6) | |
C13 | 0.6166 (3) | 0.6284 (3) | 0.77790 (16) | 0.0339 (5) | |
C14 | 0.5457 (4) | 0.6525 (3) | 0.83168 (19) | 0.0441 (7) | |
H14A | 0.4484 | 0.5995 | 0.8215 | 0.066* | |
H14B | 0.5243 | 0.7549 | 0.8336 | 0.066* | |
H14C | 0.6088 | 0.6222 | 0.8822 | 0.066* | |
C15 | 0.4032 (3) | 0.9782 (3) | 0.68379 (16) | 0.0366 (6) | |
C16 | 0.3456 (4) | 0.9001 (5) | 0.7293 (2) | 0.0565 (9) | |
H16A | 0.2335 | 0.9124 | 0.7181 | 0.085* | |
H16B | 0.3881 | 0.9271 | 0.7840 | 0.085* | |
H16C | 0.3705 | 0.8001 | 0.7212 | 0.085* | |
Atomic displacement parameters (Å2) top | U11 | U22 | U33 | U12 | U13 | U23 |
Co1 | 0.0395 (2) | 0.0320 (2) | 0.0266 (2) | 0.00247 (13) | 0.00361 (16) | 0.00086 (13) |
O1 | 0.0559 (12) | 0.0429 (11) | 0.0393 (10) | −0.0051 (10) | 0.0115 (9) | −0.0023 (9) |
O2 | 0.0501 (12) | 0.0604 (16) | 0.0443 (12) | −0.0060 (11) | −0.0001 (10) | 0.0126 (11) |
O3 | 0.0516 (12) | 0.0417 (12) | 0.0654 (14) | −0.0049 (10) | 0.0127 (11) | −0.0152 (11) |
O4 | 0.0609 (15) | 0.0780 (18) | 0.0622 (16) | −0.0064 (14) | −0.0117 (13) | 0.0198 (15) |
N1 | 0.0439 (12) | 0.0375 (12) | 0.0420 (13) | 0.0019 (10) | 0.0083 (11) | 0.0042 (10) |
N2 | 0.0454 (12) | 0.0359 (12) | 0.0359 (11) | 0.0016 (10) | 0.0066 (10) | −0.0015 (10) |
C1 | 0.0508 (16) | 0.0449 (17) | 0.0500 (16) | 0.0058 (14) | 0.0078 (14) | 0.0047 (14) |
C2 | 0.0521 (17) | 0.0441 (17) | 0.067 (2) | 0.0122 (14) | 0.0108 (16) | 0.0045 (16) |
C3 | 0.0532 (17) | 0.0442 (18) | 0.065 (2) | 0.0079 (14) | 0.0206 (16) | −0.0054 (15) |
C4 | 0.0434 (14) | 0.0413 (15) | 0.0456 (15) | −0.0025 (12) | 0.0161 (12) | −0.0028 (12) |
C5 | 0.0588 (18) | 0.0550 (19) | 0.0451 (16) | −0.0029 (16) | 0.0206 (15) | −0.0098 (14) |
C6 | 0.0535 (17) | 0.0598 (19) | 0.0356 (14) | 0.0007 (15) | 0.0100 (13) | −0.0008 (14) |
C7 | 0.0453 (15) | 0.0425 (16) | 0.0366 (14) | −0.0051 (12) | 0.0077 (12) | 0.0027 (11) |
C8 | 0.0528 (16) | 0.0476 (17) | 0.0387 (14) | 0.0008 (14) | 0.0025 (13) | 0.0067 (13) |
C9 | 0.0538 (17) | 0.0405 (16) | 0.0538 (17) | 0.0087 (13) | 0.0032 (14) | 0.0043 (14) |
C10 | 0.0517 (16) | 0.0391 (15) | 0.0471 (16) | 0.0065 (13) | 0.0059 (13) | −0.0051 (13) |
C11 | 0.0411 (14) | 0.0334 (13) | 0.0373 (14) | −0.0032 (11) | 0.0097 (11) | 0.0001 (11) |
C12 | 0.0376 (13) | 0.0348 (14) | 0.0385 (14) | −0.0030 (10) | 0.0097 (11) | 0.0024 (11) |
C13 | 0.0343 (12) | 0.0321 (13) | 0.0344 (13) | 0.0004 (10) | 0.0048 (10) | −0.0030 (11) |
C14 | 0.0571 (17) | 0.0342 (14) | 0.0520 (16) | −0.0042 (12) | 0.0368 (15) | −0.0044 (12) |
C15 | 0.0378 (13) | 0.0356 (13) | 0.0338 (13) | −0.0001 (11) | 0.0012 (11) | 0.0002 (11) |
C16 | 0.0439 (16) | 0.088 (3) | 0.0378 (16) | −0.0182 (16) | 0.0085 (13) | 0.0191 (17) |
Geometric parameters (Å, º) top
Co1—O1 | 1.999 (2) | C4—C5 | 1.408 (5) |
Co1—O2 | 1.941 (2) | C5—C6 | 1.346 (5) |
Co1—O3i | 2.320 (2) | C5—H5 | 0.9300 |
Co1—N1 | 2.008 (3) | C6—C7 | 1.424 (5) |
Co1—N2 | 1.984 (2) | C6—H6 | 0.9300 |
O1—C13 | 1.283 (4) | C7—C11 | 1.385 (4) |
O2—C15 | 1.259 (4) | C7—C8 | 1.415 (5) |
O3—C13 | 1.245 (4) | C8—C9 | 1.357 (5) |
O3—Co1ii | 2.320 (2) | C8—H8 | 0.9300 |
O4—C15 | 1.214 (4) | C9—C10 | 1.387 (5) |
N1—C1 | 1.329 (4) | C9—H9 | 0.9300 |
N1—C12 | 1.348 (4) | C10—H10 | 0.9300 |
N2—C10 | 1.316 (4) | C11—C12 | 1.421 (4) |
N2—C11 | 1.351 (4) | C13—C14 | 1.223 (4) |
C1—C2 | 1.381 (5) | C14—H14A | 0.9600 |
C1—H1 | 0.9300 | C14—H14B | 0.9600 |
C2—C3 | 1.348 (5) | C14—H14C | 0.9600 |
C2—H2 | 0.9300 | C15—C16 | 1.234 (4) |
C3—C4 | 1.419 (5) | C16—H16A | 0.9600 |
C3—H3 | 0.9300 | C16—H16B | 0.9600 |
C4—C12 | 1.398 (4) | C16—H16C | 0.9600 |
| | | |
O1—Co1—O2 | 91.00 (10) | C11—C7—C8 | 116.6 (3) |
O1—Co1—O3i | 86.94 (9) | C11—C7—C6 | 118.0 (3) |
O2—Co1—O3i | 82.25 (9) | C8—C7—C6 | 125.4 (3) |
O1—Co1—N1 | 165.97 (10) | C9—C8—C7 | 119.9 (3) |
O1—Co1—N2 | 93.00 (9) | C9—C8—H8 | 120.1 |
O2—Co1—N1 | 93.96 (11) | C7—C8—H8 | 120.1 |
O2—Co1—N2 | 174.47 (10) | C8—C9—C10 | 119.7 (3) |
O3—Co1—N1i | 138.62 (4) | C8—C9—H9 | 120.2 |
O3—Co1—N2i | 125.59 (5) | C10—C9—H9 | 120.2 |
N1—Co1—N2 | 83.03 (10) | N2—C10—C9 | 121.5 (3) |
C13—O1—Co1 | 115.45 (18) | N2—C10—H10 | 119.2 |
C15—O2—Co1 | 117.46 (19) | C9—C10—H10 | 119.2 |
C13—O3—Co1ii | 121.71 (18) | N2—C11—C7 | 122.5 (3) |
C1—N1—C12 | 117.7 (3) | N2—C11—C12 | 117.4 (3) |
C1—N1—Co1 | 131.2 (2) | C7—C11—C12 | 120.0 (3) |
C12—N1—Co1 | 110.95 (19) | N1—C12—C4 | 123.0 (3) |
C10—N2—C11 | 119.8 (3) | N1—C12—C11 | 116.6 (3) |
C10—N2—Co1 | 129.0 (2) | C4—C12—C11 | 120.4 (3) |
C11—N2—Co1 | 111.18 (19) | C14—C13—O3 | 121.9 (3) |
N1—C1—C2 | 123.3 (3) | C14—C13—O1 | 118.0 (3) |
N1—C1—H1 | 118.4 | O3—C13—O1 | 120.1 (3) |
C2—C1—H1 | 118.4 | C13—C14—H14A | 109.5 |
C3—C2—C1 | 119.8 (3) | C13—C14—H14B | 109.5 |
C3—C2—H2 | 120.1 | H14A—C14—H14B | 109.5 |
C1—C2—H2 | 120.1 | C13—C14—H14C | 109.5 |
C2—C3—C4 | 119.1 (3) | H14A—C14—H14C | 109.5 |
C2—C3—H3 | 120.5 | H14B—C14—H14C | 109.5 |
C4—C3—H3 | 120.5 | O4—C15—C16 | 123.8 (3) |
C12—C4—C5 | 118.6 (3) | O4—C15—O2 | 118.0 (3) |
C12—C4—C3 | 117.1 (3) | C16—C15—O2 | 118.3 (3) |
C5—C4—C3 | 124.3 (3) | C15—C16—H16A | 109.5 |
C6—C5—C4 | 120.7 (3) | C15—C16—H16B | 109.5 |
C6—C5—H5 | 119.7 | H16A—C16—H16B | 109.5 |
C4—C5—H5 | 119.7 | C15—C16—H16C | 109.5 |
C5—C6—C7 | 122.2 (3) | H16A—C16—H16C | 109.5 |
C5—C6—H6 | 118.9 | H16B—C16—H16C | 109.5 |
C7—C6—H6 | 118.9 | | |
Symmetry codes: (i) −x+3/2, y+1/2, −z+3/2; (ii) −x+3/2, y−1/2, −z+3/2. |
Hydrogen-bond geometry (Å, º) top
D—H···A | D—H | H···A | D···A | D—H···A |
C2—H2···O4iii | 0.93 | 2.51 | 3.327 (4) | 147 |
C10—H10···O2ii | 0.93 | 2.36 | 3.263 (4) | 164 |
Symmetry codes: (ii) −x+3/2, y−1/2, −z+3/2; (iii) −x+1/2, y+1/2, −z+3/2. |
Experimental details
Crystal data |
Chemical formula | [Co(C2H3O2)2(C12H8N2)] |
Mr | 357.22 |
Crystal system, space group | Monoclinic, P21/n |
Temperature (K) | 273 |
a, b, c (Å) | 8.6864 (17), 9.183 (2), 17.0024 (11) |
β (°) | 101.897 (4) |
V (Å3) | 1327.1 (4) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 1.32 |
Crystal size (mm) | 0.41 × 0.24 × 0.20 |
|
Data collection |
Diffractometer | Bruker SMART CCD area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.617, 0.774 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 8683, 2779, 2349 |
Rint | 0.017 |
(sin θ/λ)max (Å−1) | 0.638 |
|
Refinement |
R[F2 > 2σ(F2)], wR(F2), S | 0.042, 0.127, 1.03 |
No. of reflections | 2779 |
No. of parameters | 210 |
No. of restraints | 2 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.69, −0.51 |
Selected geometric parameters (Å, º) topCo1—O1 | 1.999 (2) | Co1—N1 | 2.008 (3) |
Co1—O2 | 1.941 (2) | Co1—N2 | 1.984 (2) |
Co1—O3i | 2.320 (2) | | |
| | | |
O1—Co1—O2 | 91.00 (10) | O2—Co1—N1 | 93.96 (11) |
O1—Co1—O3i | 86.94 (9) | O2—Co1—N2 | 174.47 (10) |
O2—Co1—O3i | 82.25 (9) | O3—Co1—N1i | 138.62 (4) |
O1—Co1—N1 | 165.97 (10) | O3—Co1—N2i | 125.59 (5) |
O1—Co1—N2 | 93.00 (9) | N1—Co1—N2 | 83.03 (10) |
Symmetry code: (i) −x+3/2, y+1/2, −z+3/2. |
Hydrogen-bond geometry (Å, º) top
D—H···A | D—H | H···A | D···A | D—H···A |
C2—H2···O4ii | 0.93 | 2.51 | 3.327 (4) | 147 |
C10—H10···O2iii | 0.93 | 2.36 | 3.263 (4) | 164 |
Symmetry codes: (ii) −x+1/2, y+1/2, −z+3/2; (iii) −x+3/2, y−1/2, −z+3/2. |
In the synthesis of crystal structures by design, the assembly of molecular units in predefined arrangements is a key goal (Desiraju, 1995, 1997; Braga et al., 1998). Aromatic polycyclic compounds, such as phenanthroline, quinoline and benzimidazole, are one of the most important classes of biological ligands and the coordinations of metal-aromatic polycyclic compounds are of critical importance in biological systems, organic materials and coordination chemistry (Wu et al., 2003; Pan & Xu, 2004; Liu et al., 2004; Li et al., 2005). As a bidentate flexible ligand, carboxyl groups compounds are also good ligands with excellent coordination capabilities to generate mono-, bi- or trinuclear complexes, which are commonly used as precursors for the formation of supramolecular architectures (McCann et al., 1996; McCann et al., 1995; Wai et al., 1990; Yaghi et al., 1996; Min & Lee 2002; Maira et al., 2001). We report herein the crystal structure of the title compound, (I).
In the molecule of (I) (Fig. 1), the ligand bond lengths and angles are within normal ranges (Allen et al., 1987). It has an inversion centre midway between the two CoII ions, which are bridged by two bidentate and two monodentate carboxyl groups. Each Co atom is five-coordinated by two N atoms of 1,10-phenanthroline (phen) ligand and three O atoms of acetate ligands. The Co—O and Co—N bonds are in the range of [1.941 (2)–2.320 (2) Å] and [1.984 (2)–2.008 (3) Å], respectively (Table 1).
In the crystal structure, intermolecular C—H···O hydrogen bonds (Table 2, Fig. 2) result in the formation of a polymeric ribbon structure.