Crystal and molecular structure of di-2-(5-perfluoromethyltetrazolato)-.mu.-1,2-bis(diphenylphosphino)ethane-bis(1,2-bis(diphenylphosphino)ethane)dicopper(I),Cu2(CF3CN4)2((CH2P(C6H5)2)2)3

Abstract

Structure of Cu2 (CF3CN4)2 ((CH2P (CeH6) 2) 2);

Synthesis of arene ruthenium triazolato complexes by cycloaddition of the corresponding arene ruthenium azido complexes with activated alkynes or with fumaronitrile

“…Evidence obtained to date indicates that either of the two isomers N(1) and N(2)-bonded are formed simultaneously [7,12,16,26,27] or only the N(2) bound isomer is produced exclusively [7,12,16,17]. In our cases both the N(1) and N(2) bonded isomers are formed depending on the substituents of the triazolato ring.…”

“…In analogy, a coordinated azide group in metal complexes can also undergo such cycloaddition reactions [6]. Azido complexes undergo [3+2] cycloaddition reactions with nitriles [7][8][9][10][11][12][13][14][15][16][17][18][19] and isonitriles [7,8,[20][21][22][23] to produce tetrazolato complexes. Similar reactions with alkynes produce triazolates complexes [12,[24][25][26]; alkenes, however, react very slowly and mostly afforded mixture of products [8,12].…”

Part 1: 1,3-Dipolar addition of activated alkyne towards coordinated azido group in ruthenium(II) complexes containing η5-cyclichydrocarbons

“…NMR spectra were recorded on an AMX-400 MHz spectrometer at 400. 13 ( 1 H), 161.97 ( 31 P) or 100.61 MHz ( 13 C) with SiMe 4 or 85% H 3 PO 4 as internal references and coupling constants are given in hertz. Infrared spectra were recorded as a KBr pellets on a Perkin-Elmer Model 983 spectrometer.…”

“…The 13 C{ 1 H} NMR spectra of these complexes exhibit multiplet signals at d 127.59-134.61 for the carbon of the phenyl group. 13 C { 1 H} NMR of the indenyl triazole complexes were also studied. Kohler [35b] proposed a correlation between 13 C{ 1 H} chemical shift of indenyl ring junction carbons, C(3a)-(7a) and hapacity of the coordinated ligand.…”

“…By analogy, Dori and Ziolo [7a] and Fruhauf [7b] have reported that coordinated azide in metal complexes can also undergo cycloaddition reaction. Thus azido complexes have been reported to react with nitriles [8][9][10][11][12][13][14] and isonitriles [9, [15][16][17] to produce metal-nitrogen and metal-carbon bonded tetrazoles, respectively. Interestingly it has been reported that tetrazole complexes can also be produce by the reaction of coordinated nitrile in metal complex with NaN 3 [18].…”