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Cyclodiphosphazane appended with pyridyl functionalities: Reactivity, transition metal chemistry and structural studies

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Title Cyclodiphosphazane appended with pyridyl functionalities: Reactivity, transition metal chemistry and structural studies
 
Creator ANANTHNAG, GS
MAGUE, JT
BALAKRISHNA, MS
 
Subject HYBRID LIGANDS
RUTHENIUM(II) COMPLEXES
NICKEL(II) COMPLEXES
HYDROGENATION
ISOMERIZATION
DIPHOSPHINE
MACROCYCLES
DERIVATIVES
PHOSPHINES
STYRENE
Cyclodiphosphazane
Multi dentate
Transition metal complex
Chelation
Coordination
X-ray structure
 
Description A pyridyl functionalized cyclodiphosphazane, cis-{(mu-(NBu)-Bu-t)P(OCH2C5H4N-o)}(2) (1) was synthesized by reacting pyridine-2-methanol with cis-{(mu-(NBu)-Bu-t)PCl}(2). The reactions of cis-{(m-NtBu) P(OCH2C5H4N-o)} 2 with chalcogenides in appropriate stoichiometry afforded both mono and bis-chalcogenides. The treatment of 1 with ML2Cl2 (M = Pd or Pt; L-2 = COD, (SMe2)(2)) in 1:1 molar ratios resulted in the formation of mononuclear complexes, [MCl2{(mu-(NBu)-Bu-t) P(OCH2C5H4N-o)}(2)] (8 M = Pd; 9 M = Pt), whereas the 1:2 reactions produced binuclear complexes [(MCl2)(2){(mu-(NBu)-Bu-t)P(OCH(2)C(5)H4N-o)}(2)] (10 M = Pd; 11 M = Pt). The reaction of 1 with [Ru(eta(6)-p-cymene)(mu-Cl)Cl](2) afforded [((eta(6)-p-cymene) RuCl2)(2){(mu-(NBu)-Bu-t) P(OCH2C5H4N-o)}(2)] (13). Reaction of [Rh(mu-Cl)(COD)](2) with 1 in a 1:2 molar ratio yielded the mononuclear complex, [{(CO) RhCl}(2){(m-(NBu)-Bu-t)P(OCH2C5H4N-o)}(2)] (14), while the 1:1 reaction of [Rh(mu-Cl)(CO)(2)](2) with 1 produced a binuclear complex [((CO)RhCl{(mu-(NBu)-Bu-t)P(OCH2C5H4N-o)}(2)] (15). The treatment of 1 with AuCl(SMe2) resulted in the formation of a binuclear complex [(AuCl)(2){(mu-(NBu)-Bu-t) P(OCH2C5H4N-o)}(2)] (16). The reaction of 1 with 2 equiv of CuBr gave coordination polymer [{Cu(mu-Br)} 2{(mu-(NBu)-Bu-t) P(OCH2C5H4N-o)}(2)](n) (17). The crystal structures of 5, 8-10, 13 and 17 were established by single-crystal X-ray diffraction studies. (C) 2014 Elsevier B.V. All rights reserved.
 
Publisher ELSEVIER SCIENCE SA
 
Date 2016-01-15T04:20:26Z
2016-01-15T04:20:26Z
2015
 
Type Article
 
Identifier JOURNAL OF ORGANOMETALLIC CHEMISTRY, 779,45-54
0022-328X
1872-8561
http://dx.doi.org/10.1016/j.jorganchem.2014.12.022
http://dspace.library.iitb.ac.in/jspui/handle/100/17742
 
Language en