Nanostructures prepared from single crystal and amorphous powder consisted of (NH3CH2CH2NH2)2[MoO2(O2C10H6)2]. (September 2014)

• Record Type: Journal Article
• Authors: Zhang, B.; Liu, B.; Liu, R. M.; Du, S. Z.; Lu, X. M.
• Is Part Of: Materials technology. Volume 29:Number 5(2014)
• Page Start: 296
• Page End: 300
• Publication Date: 2014-09
• Subjects: Materials -- Periodicals; Materials science -- Periodicals; Materials -- Technological innovations -- Periodicals; 620.1105
• DOI: 10.1179/1753555714Y.0000000162
• Languages: English
• ISSNs: 1066-7857

Abstract

<abstract> <title> <x content-type="archive" xml:space="preserve">Abstract</x> </title> <p>Molybdenum complex (NH<sub>3</sub>CH<sub>2</sub>CH<sub>2</sub>NH<sub>2</sub>)<sub>2</sub>[MoO<sub>2</sub>(O<sub>2</sub>C<sub>10</sub>H<sub>6</sub>)<sub>2</sub>].0·5CH<sub>3</sub>CN have been synthesised, bulk single crystal and macro amorphous powder consisted of the complex are produced respectively, and from which plate-like nanocrystal with scale in tens nm and nanopowders with diameter in a few nm are prepared separately by grinding and ultra-sonication. X-ray diffraction revealed that the crystal exhibited multi-layered structure with lamellar repeating motifs linked by Van Der Waals forces, and the lamella motif are constituted by (NH<sub>3</sub>CH<sub>2</sub>CH<sub>2</sub>NH<sub>2</sub>)<sub>2</sub>[MoO<sub>2</sub>(O<sub>2</sub>C<sub>10</sub>H<sub>6</sub>)<sub>2</sub>].0·5CH<sub>3</sub>CN through hydrogen bonds (OC<sub>10</sub>H<sub>8</sub>)O(2)···H-NCCN-H···O(2)(C<sub>10</sub>H<sub>8</sub>O) with the distance 1·9226 Å and angle 170° and NCCN ···H-NCCN with the distance 1·9323 Å and angle 160°. Since both Van Der Waals force and hydrogen bonds are weak interaction among the molecules, and the linkage molecule NH<sub>2</sub>CH<sub>2</sub>CH<sub>2</sub>NH<sub>2</sub> are volatile, therefore the bulk multi-layered crystal disassembled into nano-lamellas which then broken into plate-like nano-crystals by grinding and ultra-sonication. Similar, the macro amorphous powder disaggregated into nano-powders. UV spectra has shown PhO<sup>−</sup>→Mo(πd) ligand-to-metal charge transfer (LMCT) transition and cyclic voltammetry analysis has shown complex associated with a reversible redox process, assumed to be one-electron and metal based.</p> </abstract>