000			02113nam a22002537a 4500
003			ZW-GwMSU
005			20250306100553.0
008			250306b |||||||| |||| 00| 0 eng d
022			_a09743626
040			_aMSU _bEnglish _cMSU _erda
050	0	0	_aQD31 JOU
100	1		_aNagarkar, Sanjog S _eauthor
245	1	0	_aReversible structural transformations in a Co(II)-based 2D dynamic metal-organic framework showing selective solvent uptake / _ccreated by Sanjog S Nagarkar and Sujit K. Ghosh
264	1		_aBangalore : _bSpringer, _c2015.
336			_2rdacontent _atext _btxt
337			_2rdamedia _aunmediated _bn
338			_2rdacarrier _avolume _bnc
440			_aJournal of chemical sciences _vVolume 127, number 4,
520	3		_aA Co(II)-based two-dimensional (2D) metal-organic framework (MOF) [Co(pca)(bdc)0.5(H2O)2] (1) {pca = pyrazine carboxylic acid, and bdc = 1,4-benzene dicarboxylic acid} was synthesized solvothermally. The compound loses the coordinated lattice water molecules on heating which is accompanied by solid-state structural transformation to yield dehydrated phase [Co(pca)(bdc)0.5] ( ). The hydrated structure can be regained by exposing 1 to water vapour (1 ). These reversible solid-state structural transformations are accompanied by a visible colour change in the material. The dehydrated compound also shows highly selective water uptake over other solvents like MeOH, EtOH, THF. This selective water uptake can be ascribed to the high affinity of polar water molecule towards the open metal site created on heating. The present report provides important insights into the reversible structural transformations observed due to variable coordination number of the central metal ion and transformability of the framework. The selective water uptake over alcohols along with visible colour change demonstrates the potential of the present compound in bio-alcohol purification.
650			_aMetal-organic frameworks _vCoordination polymers _xSelective uptake
700	1		_aGhosh, Sujit K. _eco author
856			_uhttps://doi.org/10.1007/s12039-015-0820-3
942			_2lcc _cJA
999			_c169166 _d169166