Selenium containing imidazolium salt in designing single source precursors for silver bromide and selenide nano-particles

Hemant Joshi; Kamal Nayan Sharma; Ved Vati Singh; Pradhumn Singh; Ajai Kumar Singh

doi:10.1039/C2DT32818F

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Dalton Transactions

Issue 7, 2013

The international journal for inorganic, organometallic and bioinorganic chemistry

Impact Factor 3.838 48 Issues per Year Indexed in MEDLINE

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Selenium containing imidazolium salt in designing single source precursors for silver bromide and selenide nano-particles

Hemant Joshi,^a Kamal Nayan Sharma,^a Ved Vati Singh,^a Pradhumn Singh^a and Ajai Kumar Singh*^a

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Department of Chemistry, Indian Institute of Technology Delhi, New Delhi 110016, India
E-mail: aksingh@chemistry.iitd.ac.in ;
Fax: +91-01-26581102 ;
Tel: +91-011-26591379

Dalton Trans., 2013,42, 2366-2370

DOI: 10.1039/C2DT32818F
Received 04 Oct 2012, Accepted 17 Dec 2012
First published online 18 Dec 2012

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Abstract
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The AgBr and Ag₂Se nanoparticles (NPs) have been synthesized for the first time from two single source precursors ([Ag₂(L)₂Br₂] (1) and [Ag(L–HBr)₂]BF₄ (2) respectively) designed using the same ligand 3-benzyl-1-(2-phenylselanyl-ethyl)-3H-imidazolium bromide (L). The ODE–ODA–OA (1:1:2) and TOP–OA (1:2) are most suitable solvents for thermolysis of 1 and 2 respectively, resulting in the NPs. The composition of the solvent used in thermolysis affects the purity of NPs. The bonding of L in 1 is unique, as it has a pre-carbene site intact.