DSpace
 

DSpace at IIT Bombay >
IITB Publications >
Article >

Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/11817

Title: Sterically encumbered acyclic diphosphazanes: synthesis, conformations and coordination behavior
Authors: PRABUSANKAR, G
PALANISAMI, N
MURUGAVEL, R
BUTCHERB, RJ
Keywords: molybdenum tetracarbonyl complexes
transition-metal complexes
ray crystal-structure
poly(tertiary phosphines
carbonyl-complexes
triple bond
phosphorus
ligands
chemistry
nitrogen
Issue Date: 2006
Publisher: ROYAL SOC CHEMISTRY
Citation: DALTON TRANSACTIONS, (17), 2140-2146
Abstract: The reaction between lambda(3)-diphosphazane [EtN(PCl2)(2)] and the sodium salts of substituted phenols affords sterically encumbered diphosphazanes [EtN{P(OR)(2)}(2)] (R= -(C6H3Pr2)-Pr-i-2,6 (1), -C6H3Me2-2,6 (2) and -C6H2Me3-2,4,6 (3)). When the same reaction was carried out with bulky sodium 2,4-di-tert-butyl-4-methylphenoxide, only a monosubstitution takes place to result in the formation of [EtN{PCl(OR)}(2)] (R= -(C6H2Bu2)-Bu-t-2,6-Me-4) (4). Further reaction of 2 with [Mo(CO)(4)(NBD)] produces cis-[(EtN{P(OC6H3Me2-2,6)(2)}(2)) Mo(CO)(4)] (5). Diphosphazanes 1-4 and the metal derivative 5 have been characterized by means of their analytical data and EI-MS, IR and multinuclear NMR (H-1 and P-31) spectral data. The solid-state structure of the diphosphazanes 1, 2 and 4, and the molybdenum complex 5 have been determined by X-ray diffraction studies. Irrespective of the size of substituent, the bulky groups on the phosphorus and nitrogen are on the same side of the P-N-P skeleton with a local C-2v symmetry. The central nitrogen remains almost trigonal planar in all the compounds.
URI: http://dx.doi.org/10.1039/b516316a
http://dspace.library.iitb.ac.in/xmlui/handle/10054/11817
http://hdl.handle.net/10054/11817
ISSN: 1477-9226
Appears in Collections:Article

Files in This Item:

There are no files associated with this item.

View Statistics

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! DSpace Software Copyright © 2002-2010  Duraspace - Feedback