(Chloromethyl)diphenylphosphine Oxide Complexes of Tin and Uranium

Authors

  • Ramesh N. Kapoor The University of Texas at El Paso
  • Franciso Cervantes-Lee The University of Texas at El Paso
  • Keith H. Pannell The University of Texas at El Paso

Keywords:

(Chloromethyl)diphenyl phosphine oxide, tin, uranium, complexes, stoichiometry

Abstract

Abstract. The reactions between (chloromethyl)diphenylphosphine oxide, ClCH2P(O)Ph2 (L) and Me2SnCl2, Ph2SnCl2, Ph3SnCl and UO2(NO3)2 form complexes 1, 2, 3 and 4 respectively. The organotin complexes 1, 2, 3, exhibit a 1:1 ligand metal stoichiometry while the uranyl nitrate (4) complex is a 2:1 complex. The complexes have been characterized by 13C, 119Sn and 31P NMR spectroscopy and their single crystal X-ray structures have also been determined. The chlorine atom of the (chloromethyl)diphenylphosphine oxide does not directly interact either intramolecularly or intermolecularly with either the uranium or tin center as determined by the internuclear distances being greater than the sum of their respective Van der Waal’s radii. However, in 1 and 4 there are clear dipolar interactions that result in conformational and molecular alignments due to the presence of the CH2Cl group.

 

Resumen. Las reacciones entre el óxido de (clorometil)difenilfosfina ClCH2P(O)Ph2 (L), y Me2SnCl2, Ph2SnCl2, Ph3SnCl y UO2(NO3) forman los complejos 1, 2, 3 y 4 respectivamente. Los complejos de organoestaño 1, 2 y 3, exhiben una estequiometría metal ligando 1:1 mientras que en el complejo de nitrato de uranilo (4) esta es 2:1. Los complejos se han caracterizado por RMN de 13C, 119Sn y 31P y su estructura cristalina ha sido determinada por difracción de rayos X de sus respectivos monocristales. El átomo de cloro del óxido de (clorometil) difenilfosfina no interactúa, ya sea intramolecular o intermolecularmente con el centro métalico uranio o estaño dado que las distancias internucleares son mayores que la suma de los correspondientes radios de Van der Waal’s. Sin embargo, en 1 y 4 se manifiesta una clara interacción dipolar que da como resultado un alineamiento conformacional de las moléculas en la estructura cristalina debido a la presencia del grupo CH2Cl.

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Author Biographies

Ramesh N. Kapoor, The University of Texas at El Paso

Department of Chemistry

Franciso Cervantes-Lee, The University of Texas at El Paso

Department of Chemistry

Keith H. Pannell, The University of Texas at El Paso

Department of Chemistry

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Published

2020-08-05

Issue

Vol. 51 No. 2 (2007): Regular Issue

Section

Regular Articles

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