N-(2,6-Dimethylphenyl)diphenylphosphinamine chalcogenides (S, Se) and a zirconium complex possessing phosphanylamide in the coordination sphere

Naktode, K and Kottalanka, R K and Panda, Tarun K (2012) N-(2,6-Dimethylphenyl)diphenylphosphinamine chalcogenides (S, Se) and a zirconium complex possessing phosphanylamide in the coordination sphere. New Journal of Chemistry, 36 (11). pp. 2280-2285. ISSN 1144-0546

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Abstract

We report the syntheses of N-(2,6-dimethylphenyl)-P,P- diphenylphosphinothioic amide Ph 2P(S)NH-(2,6-Me 2C 6H 3)] (2) and N-(2,6-dimethylphenyl)-P,P- diphenylphosphinoselenoic amide Ph 2P(Se)NH-(2,6-Me 2C 6H 3)] (3) by the reaction of N-(2,6-dimethylphenyl)-P,P- diphenylphosphinamine [Ph 2PNH-(2,6-Me 2C 6H 3)] (1) with elemental sulphur and selenium respectively. When the phosphinamine compound 1 was treated with n-BuLi and subsequently with zirconocenedichloride in an equimolar ratio, the corresponding zirconium complex [{η 5-Cp 2ZrCl(η 2-N(2,6-Me 2C 6H 3)PPh 2}] (5) was obtained in good yield. The solid state structures of all the compounds were established by single crystal X-ray diffraction analysis. In zirconium complex 5, a highly strained three membered metallacycle was observed. In addition, the solid state structure of [Ph 2P(O)NH(2,6-Me 2C 6H 3)] (4) was also determined. In the solid state structure, compound 4 shows extensive intermolecular hydrogen bonding through oxygen atoms, whereas a lesser extent of intermolecular hydrogen bonding was noted in compound 2, due to the presence of the less electronegative sulphur atom.

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IITH Creators:

IITH Creators	ORCiD
Panda, Tarun K	http://orcid.org/0000-0003-0975-0118

Item Type:

Article

Additional Information:

Generous support from K. Mashima, Osaka University, Japan is gratefully acknowledged. We are thankful to W. Fraser for helpful discussions regarding solid state structures.

Uncontrolled Keywords:

amide; amine; n (2,6 dimethylphenyl)diphenylphosphinamine; n (2,6 dimethylphenyl)diphenylphosphinoselenoic amide; n (2,6 dimethylphenyl)diphenylphosphinothioic amide; oxygen; selenium; sulfur; unclassified drug; zirconium

Subjects:

?? sub5.8 ??

Divisions:

Department of Chemistry

Depositing User:

Team Library

Date Deposited:

07 Nov 2014 04:50

Last Modified:

07 Sep 2017 11:32

URI:

http://raiithold.iith.ac.in/id/eprint/623