Home Physical Sciences Crystal structure of catena-poly[diaqua-bis(3,4,5,6-tetrabromo-carboxybenzoato-κ1O)-(μ2-4,4′-bipyridine-κ2N:N′)cobalt(II)], C26H14Br8CoN2O10
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Crystal structure of catena-poly[diaqua-bis(3,4,5,6-tetrabromo-carboxybenzoato-κ1O)-(μ2-4,4′-bipyridine-κ2N:N′)cobalt(II)], C26H14Br8CoN2O10

  • Yong-Shuang Li , Jia-Yang Luo , Man-Qiu He and Min-Le Han ORCID logo EMAIL logo
Published/Copyright: October 4, 2019

Abstract

C26H14Br8CoN2O10, orthorhombic, Pbcn (no. 60), a = 24.3935(3) Å, b = 11.4505(1) Å, c = 11.7004(1) Å, V = 3268.13(6) Å3, Z = 4, Rgt(F) = 0.0313, wRref(F2) = 0.0819, T = 293 K.

CCDC no.: 1953260

A part of the title crystal structure is shown in the figure (' = 1 − x, y, 1.5 − z; '' = x, 1 + y, z). Table 1 contains crystallographic data and Table 2 contains the list of the atoms including atomic coordinates and displacement parameters.

Table 1:

Data collection and handling.

Crystal:Pink block
Size:0.20 × 0.19 × 0.17 mm
Wavelength:Cu Kα radiation (1.54184 Å)
μ:16.1 mm−1
Diffractometer, scan mode:XtaLAB Pro, ω
θmax, completeness:66.6°, >99%
N(hkl)measured, N(hkl)unique, Rint:9804, 2887, 0.033
Criterion for Iobs, N(hkl)gt:Iobs > 2 σ(Iobs), 2688
N(param)refined:217
Programs:SHELX [1], [2], CrysAlisPRO [3]

Source of material

A mixture of 3,4,5,6-tetrabromo-phthalic acid (H2Br4ph, 19 mg, 0.04 mmol), 4,4′′-bipyridyl (31 mg, 0.02 mmol), and Co(ClO4)2 ⋅ 6H2O (29 mg, 0.08 mmol) were added to water

Table 2:

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2).

AtomxyzUiso*/Ueq
Br10.67663(2)0.81863(4)0.77556(4)0.04235(15)
Br20.80868(2)0.79724(4)0.74510(4)0.03983(15)
Br30.86073(2)0.58826(5)0.58367(5)0.04598(15)
Br40.77724(2)0.41005(4)0.44627(4)0.03593(14)
C10.60882(15)0.6428(3)0.6292(3)0.0235(7)
C20.65170(14)0.4730(3)0.4791(3)0.0237(7)
C30.67066(14)0.6293(3)0.6207(3)0.0214(7)
C40.69230(14)0.5462(3)0.5456(3)0.0211(7)
C50.74888(15)0.5325(3)0.5362(3)0.0230(7)
C60.78415(15)0.6054(3)0.5965(3)0.0265(8)
C70.76308(15)0.6927(3)0.6669(3)0.0253(8)
C80.70604(15)0.7026(3)0.6804(3)0.0247(7)
C90.46030(16)0.3651(3)0.7000(4)0.0333(9)
H90.43210.40570.66450.040*
C100.45862(16)0.2441(3)0.6980(4)0.0338(9)
H100.42980.20560.66180.041*
C110.50000.1809(4)0.75000.0237(11)
C120.50000.0510(4)0.75000.0239(11)
C130.46980(19)−0.0134(3)0.6720(4)0.0404(10)
H130.44890.02470.61700.048*
C140.47057(18)−0.1336(3)0.6753(4)0.0381(10)
H140.4494−0.17410.62250.046*
Co10.50000.61512(6)0.75000.01751(19)
N10.50000.4266(4)0.75000.0220(9)
N20.5000−0.1951(3)0.75000.0243(9)
O10.58695(10)0.6146(2)0.7241(2)0.0218(5)
O20.58553(11)0.6785(3)0.5430(2)0.0436(8)
O30.61640(12)0.4166(3)0.5263(2)0.0418(7)
O40.65766(10)0.4816(2)0.3684(2)0.0279(6)
H40.63510.43970.33640.042*
O50.51672(11)0.6149(2)0.9226(2)0.0316(6)
H5A0.50530.67960.95320.047*
H5B0.55190.61690.93520.047*

(6 mL) in a 25 mL Teflon-lined autoclave. The mixture was heated at 393 K for 3 days and then slowly cooled down to room temperature. Light pink block crystals of the title compound were obtained.

Experimental details

The carbon bound hydrogen atoms were placed in calculated positions and refined using a riding model on attached atoms.

Comment

In the last two decades, a large number of cobalt(II)-based metal-organic frameworks (MOFs) and coordination polymers have been reported in the literature [3], [4], [5], [6], [7], [8]. Organic aromatic multicarboxylates, such as phthalic acid (1,2-benzenedicarboxylic acid) and its derivatives, as the mediators between the metal centers, can yield predetermined networks and have been widely utilized to construct coordination polymers [9], [10], [11], [12]. On the other hand, 4,4′-bipyridine (4,4′-bipy), as a nitrogen donor ligand, serves as a bridging ligand, which can act as bidentate ligand to coordinate to two metal ions [13], [14], [15], [16].

In the title complex, there are one half of a Co(II) ion, one coordinated water molecule, one HBr4ph ligands, and one half of 4,4′-bipy ligand in the asymmetric unit (figure). Co1 is six-coordinated with a distorted octahedral geometry by two O atoms from two HBr4ph and a pair of N atoms of two 4,4′-bipy ligands, located at the basal equatorial plane, and two coordinated water molecules from the axial positions with a O5-Co1-O5′ angle of 179.83(16)°. The Co—N bond lengths are 2.159(4) and 2.173(4) Å and the Co—O ones are in the range of 2.060(3) and 2.143(2) Å. Co(II) ions are linked by 4,4′-bipy ligands to form a 1-D polymer. In the title complex, there are three kinds of hydrogen bonds: (a) hydrogen bonding between water and carboxylate O atoms with d(O⋯O) = 2.62 Å; (b) hydrogen bonding between water and carboxylate O atoms with d(O⋯O) = 2.74 Å; (c) hydrogen bonding between carboxy O atoms and carboxylate O atoms with d(O⋯O) = 2.65 Å. An extended three-dimensional network of hydrogen bonds contributes to the stability of the structure.

Acknowledgements

This work was supported financially by the Natural Science Foundation of Henan province (no. 182300410238) and Henan tackle key problem of science and technology (no. 182102310620).

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Received: 2019-07-25
Accepted: 2019-09-12
Published Online: 2019-10-04
Published in Print: 2019-12-18

©2019 Yong-Shuang Li et al., published by De Gruyter, Berlin/Boston

This work is licensed under the Creative Commons Attribution 4.0 Public License.

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  78. The crystal structure of tert-butyl (tert-butoxy(oxo)methyl)(5-bromo-2-fluorophenyl)carbamate, C16H21BrFNO4
  79. The crystal structure of bis(μ2-5,7-dichloroquinolin-8-olato-κ3N,O:O)-tetrakis(5,7-dichloroquinolin-8-olato-κ2N,O)bis(methanol-κ1O)dieuropium(III) — toluene (1/1), C63H39Cl12Eu2N6O8
  80. Crystal structure of dichlorido-(N′-(1-(3-ethylpyrazin-2-yl)ethylidene)-4-methoxybenzohydrazide-κ3N,N′,O)cadmium(II), C16H18N4O2Cl2Cd
  81. A redetermination of the crystal structure of catena-poly[(bis(O,O′-isopropyl dithiophosphato-κ2S,S′)-(μ2-1,2-bis(3-pyridylmethylene)hydrazine-κ2N,N′)cadmium(II)], {C24H38CdN4O4P2S4}n
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