Abstract
A new one-dimensional coordination polymer formulated as [C2H10N2] [Mo3O10], 1, has been synthesized under hydrothermal conditions in the presence of ethylenediamine. The surface morphology of the as-synthesized product reveals colorless rod-like single crystals of 1. The compound crystallizes in monoclinic space group P21/n with a = 8.08 A, b =14.39 A, c = 8.89 A; β = 97.76°, V = 1033.65(12) A3, Z = 4. The structure is a one-dimensional chain consisting of [Mo3O10]2- clusters of Mo (VI) octahedral interspersed by the amine molecules. In the infrared spectrum of the compound, the symmetric stretching vibrational mode of the -NH2 group is observed at 3278 cm-1, while the band at 1604 cm -1 is assigned to scissoring mode of the –NH2 group. The peaks in the spectral range 1913 -2492 and 2962 cm -1 are attributed to -CH2 symmetric and asymmetric stretching vibrations respectively. The absorption bands at 1404 cm -1 is due to scissoring, while the one at 1149 cm-1 is attributable to twisting modes of - CH2 group . The characteristic band of the stretching vibrational modes of the Mo=O double bonds is observed at 1018 cm-1, while the vibrational stretching frequency involving single Mo-O bonds is observed at 846 cm-1 and the scissoring mode of this bond is at 542 cm-1. Key words: Hydrothermal synthesis, amine-templated molybdates, molybdenum oxide-organic frameworks, one-dimensional chain.
Highlights
The great interest in the design of molybdenum(VI) oxide−organic frameworks (MOOFs) is due to their applications in such areas as catalysis, magnetism, sorption etc ., and due to its fascinating structural chemistry (Lysenko et al ., 2010; Pope and Mü ller, 2001; Senchyk et al, 2014)
The structure is a one-dimensional chain consisting of [Mo3O10]2- clusters of Mo (VI) octahedral interspersed by the amine molecules
In the infrared spectrum of the compound, the symmetric stretching vibrational mode of the -NH2 group is observed at 3278 cm-1, while the band at 1604 cm -1 is assigned to scissoring mode of the –NH2 group
Summary
The great interest in the design of molybdenum(VI) oxide−organic frameworks (MOOFs) is due to their applications in such areas as catalysis , magnetism, sorption etc ., and due to its fascinating structural chemistry (Lysenko et al ., 2010; Pope and Mü ller , 2001; Senchyk et al, 2014).
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