A NOVEL SAMARIUM COMPLEX WITH INTERESTING PHOTOLUMINESCENCE AND SEMICONDUCTIVE PROPERTIES.

Authors :: Ding-Wa Zhang
Yin-Feng Wang
Wen-Tong Chen
Source :: Bulletin of the Chemical Society of Ethiopia; 2017, Vol. 31 Issue 3, p435-444, 10p
Publication Year :: 2017
Abstract: [Sm(H<subscript>2</subscript>O)<subscript>4</subscript>(NO<subscript>3</subscript>)<subscript>3</subscript>](4,4'-Hbipy)<subscript>2</subscript>(NO<subscript>3</subscript>)<subscript>2</subscript> (1) (bipy = bipyridine) has been synthesized via hydrothermal reaction and characterized by X-ray diffraction. The title complex features an isolated structure, based on discrete 4,4'-Hbipy moieties, isolated nitrates and [Sm(H<subscript>2</subscript>O)<subscript>4</subscript>(NO<subscript>3</subscript>)<subscript>3</subscript>] species. The samarium ion is in a distorted bicapped square antiprism environment, coordinated by three bidentate nitrates and four coordination water molecules. The 4,4'-Hbipy moieties, isolated nitrates and [Sm(H<subscript>2</subscript>O)<subscript>4</subscript>(NO<subscript>3</subscript>)<subscript>3</subscript>] species are held together via hydrogen bonds and π...π interactions to form a 3-D supramolecular framework. Luminescent investigation reveals a strong emission in blue region. Optical absorption spectrum of 1 reveals the presence of an optical gap of 3.60 eV. [ABSTRACT FROM AUTHOR]

Subjects :: SAMARIUM compounds
BIPYRIDINE
HYDROTHERMAL synthesis
PHOTOLUMINESCENCE
SEMICONDUCTOR analysis
CRYSTAL structure

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