Preparation and Uv Spectra of Some Oligomer-Complexes Composed of Platinum Group Metals and Conjugated Poly-Yne Systems

Abstract

The long straight-line oligomer complexes (1) and (2), composed of metal atoms of the platinum group and conjugated poly-yne systems, and the shorter chain members of the series, (3)∼(6), were prepared and their UV spectra were studied.

Synthesis and characterisation of aromatic ethynyl-bridged ferrocenes

“…The distance between the two ethynyl carbon atoms C(1) and C(16) is 15. 3 A, a value very similar to those observed in the related structures, 5,5 00 -bis((5-n-butylthien-2-yl)ethynyl)-2,2 0 : 5 0 ; 2 00 -terthiophene, (15.2 A) [18] and (l 2 -5; 5 00 -bis(2-ethynyl)-2,2 0 : 5 0 ; 2 00 -trithiophene)-bis(triphenylphosphine)-di-gold(I) (15.4 A) [19]. The central trithiophene unit is non-planar, there being torsional twists, in opposite senses, of ca.…”

“…1) [1]. Their rigid-rod architectures [2] and conjugated backbones [3] make them useful materials in the field of linear [4] and non-linear optics [5], liquid crystallinity [6] and photovoltaic cells [4a,7]. Since the discovery of rigid-rod Group 10 metal (Pt, Pd and Ni) ethynyl complexes and polymers, an active area of research has involved the discovery of new routes [1h,8] for the synthesis of new materials containing a wide range of transition metals.…”

Electronic structures and optical properties of neutral substituted fluorene-based cyclometalated platinum(II)–acetylide complexes: A DFT exploration

“…Two classes of platinum(II) r-alkynyl frameworks have been widely reported: one includes Pt mono-alkynyl and the others consist of Pt dialkynyl with trans-and cis-modes. Aiming at enhancing the device performances and tuning the photophysical and electroluminescent properties, a vast range of platinum-containing monomers and polymers have been prepared [36][37][38][39][40][41][42]. Raithby and co-workers reported a series of blue-luminescent [Pt(P n Bu 3 ) 2 ÀC"CÀXÀC"CÀ] (X = aromatic spacer) based polymers in the main chain in which the aromatic rings bearing extensive p-conjugation is useful to change the spectroscopic properties [43].…”

Synthesis and Antibacterial Activities of Sugar-containing Platinum Ethynyl Complexes

“…UV-Vis spectroscopy is used to understand the π-interaction between the metal and ethynyl group in the metal ethynyl complexes (Saha et al 2005, Younus et al 1998, Fujikura et al 1975. A broad band at 250-360 nm was observed in the spectrum of mono-and bis-ethynyl complex 4 and 5.…”