Syntheses, crystal structures and physical properties of three new chalcogenides: NaGaGe3Se8, K3Ga3Ge7S20, and K3Ga3Ge7Se20.

Abstract

Three new chalcogenides, namely NaGaGe3Se8, K3Ga3Ge7S20, and K3Ga3Ge7Se20, of an A-Ga-Ge-Q (A = Na, K; Q = S, Se) system were obtained for the first time. They crystallize into two different new structures, albeit both in the monoclinic space group P21/c. NaGaGe3Se8 has a layered structure consisting of two dimensional [M4Se8](-) layers separated by Na… (More)
DOI: 10.1039/c5dt03682h

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