Synthesis and Characterization of Poly(aryleneethynylene)s and Their Corresponding Platinum-Linked Polymers

Abstract

A series of thermally stable organic polymers [poly(2,5-diethynylpyridine] (5), [poly(1,4-diethynyl benzene)] (6), [poly(2,5-dialkyl-p-phenyleneethynylene)] (7), and [poly(p,pdiethynylbiphenyl)] (8), were synthesized by the reaction between diterminal aryleneethynylene, [HCCArCCH] {Ar = C 5 H 5 N (1); Ar = C 6 H 6 (2); Ar = C 6 H 4 (CH 3 ) 2 (3); Ar = C 6 H 4 −C 6 H 4 (4)} and CuCl in pyridine by Hay's oxidative coupling method. Then the organometallic polymers [Ph (P n Bu 3 ) 2 Pt−C≡C−(Ar−C≡C−C≡C) n −Pt((P n Bu 3 ) 2 Ph] {Ar = C 5 H 5 N (9); Ar = C 6 H 6 (10); Ar = C 6 H 4 (CH 3 ) 2 (11); Ar = C 6 H 4 −C 6 H 4 (12)} were synthesized by the reaction of organic polymers 5, 6, 7 and 8 with metal precursor (P n Bu 3 ) 2 PtPhCl in diethylisopropileamine with good yield. These metal-linked polymers were characterized by IR, 1 H-NMR, 13 C-NMR and 31 P-NMR spectra. Finally the molecular weight of the organometallic polymers (9, 10, 11 and 12) was determined by gel permeation chromatography (GPC). It is clearly observed from GPC that the polymers were synthesized with different degree of polymerization.

Conjugated Platinum-Poly-Ynes with extended Arylene Ethynylenes

“…The organic polymers (1 and 2) were synthesized by Hay's oxidative coupling reactions which were reported by Hossain et al 2011. The metal-poly-yne polymers 3 was synthesized (Scheme 1) by the condensation reaction between trans-[(P n Bu 3 ) 2 PtCl 2 ] and organic polymers 1, in diisopropylamine and dichloromethane (1 : 2) using CuI as a catalyst.…”

“…The synthesis of platinum end-capped poly(aryleneethylene)s -[Ph(P n Bu 3 ) 2 Pt-C≡C-(Ar-C≡C-C≡C) n -Pt((P n Bu 3 ) 2 Ph] {Ar = C 5 H 5 N, C 6 H 6 , C 6 H 4 (CH 3 ) 2 , C 6 H 4 -C 6 H 4 } has also been reported (Hossain et al 2011).…”

Antimicrobial Effect of Oligomeric Copper(ii) Derivatives of Bis(pyrimidin-2-Ylthio)- And Bis(4,6-Dimethylpyrimidin-2-Ylthio)alkanes

“…To confirm the polymerization reaction, the GPC technique was used to gain information on the average molecular mass of the copper(II) derivatives (Hossain et al, 2011;Pauline et al, 2011;Szuromi et al, 2011). The complexes 1, 2, 4, 5 and 6 showed high molecular mass corroborating with the oligomeric crystal structure of complex-4 as well as that of complex-1 (Samanamu et al, 2008).…”