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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 35, Number 8
BKCSDE 35(8)
August 20, 2014 

Structures and Sorption Properties of 2-Methylbenzimidazolate-Based Zn(II) Frameworks
Won Ju Phang, Woo Ram Lee, Chang Seop Hong*
Metal-organic frameworks, Imidazolate, Sorption
The syntheses and crystal structures of a three-dimensional (3D) coordination network [Zn4(2-mBIM)5- (C2H6NCOO)(HCOO)(μ-OH)]·DMF (1·DMF; 2-mBIM = 2-methylbenzimidazolate) and a two-dimensional (2D) layer [Zn2(2-mBIM)3(HCOO)(H2O)]·DMF (2·DMF) are reported. Different structures were produced depending on the ratio of reactants. Structurally, 1 illustrates the formation of a unique framework based on a 2-mBIM bridge with the side group on an imidazole ring, while 2 possesses a honeycomb layer built up purely from imidazolates. For gas sorption, CO2 is adsorbed on the activated phase of 1 but N2 is not taken up.
2419 - 2422
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