Next Article in Journal
(E)-2-(1-Cyano-2-methoxy-2-oxoethylidene)-3,4-dioxo-1-(pyridin-1-ium-1-yl)cyclobutan-1-ide
Previous Article in Journal
Ethyl 5-(4-Bromophenyl)-4-methyl-1H-pyrrole-2-carboxylate
Open AccessShort Note

Solvent-Mediated Synthesis of M(II)-Coordination Polymer Part 1: Crystal Structure of Poly(1,2-di(4-pyridyl)ethylene-k2N,N')-bis(1,4-benzenediacetato-k4O,O′,O′′,O′′')zinc(II)], C22H18ZnN2O4

1
Chemistry Department, Cross River State College of Education, Akamkpa 542104, Cross River State, Nigeria
2
Department of Pure and Applied Chemistry, University of Calabar, P.M.B.-1115, Calabar 540242, Nigeria
*
Author to whom correspondence should be addressed.
Molbank 2017, 2017(3), M952; https://doi.org/10.3390/M952
Received: 18 July 2017 / Revised: 3 August 2017 / Accepted: 3 August 2017 / Published: 6 August 2017
(This article belongs to the Section Structure Determination)
An interaction of water-methanol solution of sodium1,4-benzenediacetate (bda) and 4,4′-bipyridylethelene (bpee) with aqueous solution of Zn(NO3)2·6H2O at room temperature yielded colourless crystals of 1 after three weeks in a sealed glass tube. The compound with composition C22H18ZnN2O4 crystallizes in monoclinic space group P21/c, with the following cell dimensions: a = 10.4566(2), b = 13.3085(2), c = 13.7189(2) Å, β = 101.491(1)°. In the structure of 1, two Zn(II) neighbours are connected by two bda ligands adopting chelating and bidentate-bridging coordination modes to form a dimeric unit (Zn2O8N4) with the Zn–Zn distance of 4.0432(6) Å. The carboxyl-bridged dimeric units are extended along the [001] direction by bpee co-ligands and further linked by bda ligand to form a three-dimensional network structure. The IR shows the characteristic bands of the carboxylates at 1611/1507 cm−1 and 1424/1373 cm−1, respectively, for asymmetric and symmetric stretching −CO2 vibrations. The separation ∆[νasym(CO2) − νsym(CO2)] values of 187 and 134 cm−1 are indicative of chelating and bidentate bridging coordination modes of the carboxylate to the metal centre. View Full-Text
Keywords: coordination polymer; crystal structure metal-organic frameworks; solvent diffusion coordination polymer; crystal structure metal-organic frameworks; solvent diffusion
Show Figures

Graphical abstract

MDPI and ACS Style

Adalikwu, S.A.; Offiong, O.E.; Ayi, A.A. Solvent-Mediated Synthesis of M(II)-Coordination Polymer Part 1: Crystal Structure of Poly(1,2-di(4-pyridyl)ethylene-k2N,N')-bis(1,4-benzenediacetato-k4O,O′,O′′,O′′')zinc(II)], C22H18ZnN2O4. Molbank 2017, 2017, M952.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop