TY - JOUR
T1 - Synthesis, structures and properties of platinum(ii) complexes of oligoacetylenic sulfides
AU - Zhang, Hongkui
AU - Lee, Albert W.M.
AU - Wong, Wai Yeung
AU - Yuen, Mabel S.M.
N1 - Copyright:
Copyright 2006 Elsevier B.V., All rights reserved.
PY - 2000
Y1 - 2000
N2 - A series of novel platinum(n) acetylide complexes incorporating sulfur-linked oligoalkynes have been prepared. The Cul-catalysed dehydrohalogenation reactions of the mono-protected dialkyne ligand HC≡CSC≡C(TIPS) (TIPS = Pri3Si) with trans-[Pt(PBu3)2Cl2], cis-[Pt(dppe)Cl2] or cis-[Pt(Me2bipy)Cl2] (Me2bipy = 4,4′-dimethyl-2,2′-bipyridine), in the presence of a base, readily produced trans-[Pt(PBu3)2{C≡CSC≡C(TIPS)}2] 1, cw-[Pt(dppe)-{C≡CSC≡C(TIPS)}2] 3 and cis-[Pt(Me2bipy){C≡CSC≡C(TIPS)}2] 7, respectively, in good yields. Similar synthetic procedures using a diacetylenic sulfide species HC≡CSC≡CC≡CSC≡C(TIPS) afforded trans-[Pt(PBu3) 2-{C≡CSC≡CC≡CSC≡C(TIPS)}2] 2 and cis-[Pt(dppe){C≡CSC≡CC≡CSC≡C(TIPS)}2] 4, both of which contain eight triple-bond units within the molecular entity. Two new metallo-end-capped derivatives trans-[Ph(Et3P)2Pt-C≡CSC≡C-Pt(PEt 3)2Ph] 5 and trans-[Ph(Et3P) 2Pt-C≡CSC≡CC≡CSC≡C-Pt(PEt3) 2Ph] 6 were also synthesized in moderate yields by reactions of two equivalents of trans-[PtPh(Cl)(PEt3)2] and the diterminal acetylenic Sulfides HC≡CSC≡CH and HC≡CSC≡CC≡CSC≡CH in a CuI/(Me3Si)2NH system. All of the compounds 1-7 have been characterized by IR, NMR (1H, 13C and 31P) and UV/VIS spectroscopies, luminescence measurements and mass spectrometry. The solid-state molecular structures of 5 and 7 have been established by X-ray crystallography.
AB - A series of novel platinum(n) acetylide complexes incorporating sulfur-linked oligoalkynes have been prepared. The Cul-catalysed dehydrohalogenation reactions of the mono-protected dialkyne ligand HC≡CSC≡C(TIPS) (TIPS = Pri3Si) with trans-[Pt(PBu3)2Cl2], cis-[Pt(dppe)Cl2] or cis-[Pt(Me2bipy)Cl2] (Me2bipy = 4,4′-dimethyl-2,2′-bipyridine), in the presence of a base, readily produced trans-[Pt(PBu3)2{C≡CSC≡C(TIPS)}2] 1, cw-[Pt(dppe)-{C≡CSC≡C(TIPS)}2] 3 and cis-[Pt(Me2bipy){C≡CSC≡C(TIPS)}2] 7, respectively, in good yields. Similar synthetic procedures using a diacetylenic sulfide species HC≡CSC≡CC≡CSC≡C(TIPS) afforded trans-[Pt(PBu3) 2-{C≡CSC≡CC≡CSC≡C(TIPS)}2] 2 and cis-[Pt(dppe){C≡CSC≡CC≡CSC≡C(TIPS)}2] 4, both of which contain eight triple-bond units within the molecular entity. Two new metallo-end-capped derivatives trans-[Ph(Et3P)2Pt-C≡CSC≡C-Pt(PEt 3)2Ph] 5 and trans-[Ph(Et3P) 2Pt-C≡CSC≡CC≡CSC≡C-Pt(PEt3) 2Ph] 6 were also synthesized in moderate yields by reactions of two equivalents of trans-[PtPh(Cl)(PEt3)2] and the diterminal acetylenic Sulfides HC≡CSC≡CH and HC≡CSC≡CC≡CSC≡CH in a CuI/(Me3Si)2NH system. All of the compounds 1-7 have been characterized by IR, NMR (1H, 13C and 31P) and UV/VIS spectroscopies, luminescence measurements and mass spectrometry. The solid-state molecular structures of 5 and 7 have been established by X-ray crystallography.
UR - http://www.scopus.com/inward/record.url?scp=0002733687&partnerID=8YFLogxK
U2 - 10.1039/b004253f
DO - 10.1039/b004253f
M3 - Journal article
AN - SCOPUS:0002733687
SN - 0300-9246
SP - 3675
EP - 3680
JO - Journal of the Chemical Society. Dalton Transactions
JF - Journal of the Chemical Society. Dalton Transactions
IS - 20
ER -