Synthesis and structural studies of dimeric sodium compounds having pentametallacyclooctane and hexametallacyclo undecane structure using different phosphinamine derivatives

Kottalanka, R K and Naktode, K and Panda, Tarun K (2013) Synthesis and structural studies of dimeric sodium compounds having pentametallacyclooctane and hexametallacyclo undecane structure using different phosphinamine derivatives. Journal of Molecular Structure, 1036. pp. 188-195. ISSN 0022-2860

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Abstract

The treatment of two bulky phosphinamines [Ph2PNH(CHPh 2)] (1) and [Ph2PNH(CPh3)] (2) with 30% hydrogen peroxide afforded phosphinicamides [Ph2P(O)NH(CHPh 2)] (3) and [Ph2P(O)NHCPh3] (4) in good yield. When the same phosphinamines are reacted with elemental sulfur, corresponding sulfur compounds [Ph2P(S)NH(CHPh2)] (5) and [Ph 2P(S)NHCPh3] (6) are obtained. Further reactions of 4-6 with sodium bis(trimethylsilyl)amide in THF solution afforded corresponding sodium salts of molecular formula [{(THF)2Na(Ph2P(O) NCPh3)}2] (8), [{(THF)2Na(Ph 2P(S)NCHPh2)}2] (7) and [{(THF) 2Na(Ph2P(S)NCPh3)}{(THF)Na(Ph 2P(S)NCPh3)}] (9) and all the sodium complexes 7-9 are dimeric and form highly strained polymetallacyclic motif in solid state structures. Molecular structure of all the complexes are established by single crystal X-ray diffraction analysis

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IITH Creators:
IITH CreatorsORCiD
Panda, Tarun Khttp://orcid.org/0000-0003-0975-0118
Item Type: Article
Uncontrolled Keywords: Phosphinamines; Phosphorus; Polymetallacycles; Sodium; Sulfur
Subjects: Chemistry
Divisions: Department of Chemistry
Depositing User: Team Library
Date Deposited: 15 Dec 2014 11:46
Last Modified: 07 Sep 2017 11:29
URI: http://raiith.iith.ac.in/id/eprint/1126
Publisher URL: https://doi.org/10.1016/j.molstruc.2012.09.077
OA policy: http://www.sherpa.ac.uk/romeo/issn/0022-2860/
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