The ruthenium pyrazolonate complex Ru(PMIP)2(PPh3)2: Synthesis, structure, and some properties
摘要:
The new ruthenium(II) complex Ru(PMIP)(2)(PPh3)(2) (HPMIP is 4-isobutyryl-3-methyl-1-phe-nylpyrazol-5-one) was obtained from RuCl2(PPh3)(3) and Na(PMIP)(DME) (DME is dimethoxyethane). The structures of the complex obtained and the starting sodium pyrazolonate were determined by X-ray diffraction. The ruthenium pyrazolonate complex initiates metathetical norbornene polymerization producing high-molecular-weight polynorbornene in low yield.
The ruthenium pyrazolonate complex Ru(PMIP)2(PPh3)2: Synthesis, structure, and some properties
摘要:
The new ruthenium(II) complex Ru(PMIP)(2)(PPh3)(2) (HPMIP is 4-isobutyryl-3-methyl-1-phe-nylpyrazol-5-one) was obtained from RuCl2(PPh3)(3) and Na(PMIP)(DME) (DME is dimethoxyethane). The structures of the complex obtained and the starting sodium pyrazolonate were determined by X-ray diffraction. The ruthenium pyrazolonate complex initiates metathetical norbornene polymerization producing high-molecular-weight polynorbornene in low yield.
Polarised phosphorescent emission in an organoplatinum(ii)-based liquid-crystalline polymer
作者:Álvaro Díez、Stephen J. Cowling、Duncan W. Bruce
DOI:10.1039/c2cc35085h
日期:——
By combination of mesogenic rod-like cycloplatinated monomers based on 2,5-di(4-alkenyloxyphenyl)pyridine ligands with 1,1,3,3,5,5-tetramethyltrisiloxane, a phosphorescent, liquid-crystalline polymer was obtained, which showed polarised emission.
Novel bilirubin and biliverdin congeners with propionic acids replaced by o-carboxyphenyl exhibit diastereomerism due to axial chirality about the carbon–carbon single bond linking the o-carboxyphenyl group to a pyrrole ring. Evidence for atropisomerism was found even in the monopyrrole precursor, ethyl 3,5-dimethyl-4-(o-carboxyphenyl)pyrrole-2-carboxylate. Like bilirubin, o-carboxyphenyl rubin 1a
Synthesis and characterization of Pt(ii) and Au(i) complexes with N-oxy-heterocyclic carbene ligands (NOHCs)
作者:Alice Benin、Joshua Immanuel Kollar、Tim Riesebeck、Felix Wurl、Claudia Graiff、Thomas Strassner、Cristina Tubaro
DOI:10.1039/d4dt00996g
日期:——
platinum(II) cyclometalated N-alkyloxyimidazol-2-ylidene complexes with β-diketonate auxiliary ligands, [(CNOHC^C*)Pt(L∩L)] (L∩L = acetyacetonate (acac) or 1,3-bis(2,4,6-trimethylphenyl)-propane-1,3-dionato (mesacac)) were synthesized and fully characterized. In addition, a Au(I) monocarbene complex was synthesized, isolated and characterized. Solid-state structures of two cyclometalated platinum(II) NOHC
两个N-烷氧基-N′-苯基咪唑配体和相应的铂( II )环金属化N-烷氧基咪唑-2-亚叉基配合物与β-二酮辅助配体,[(C NOHC ^C*)Pt(L∩L)] (L合成并充分表征了 ∩L = 乙酰丙酮酸酯 (acac) 或 1,3-双(2,4,6-三甲基苯基)-丙烷-1,3-二酮 (mesacac))。此外,还合成、分离并表征了 Au( I ) 单卡宾络合物。获得了两种环金属化铂( II )NOHC配合物和Au( I )NOHC配合物的固态结构,提供了结构证明。
The Reaction of Oxymercurials with Active Methylene Compounds and the Demercuration of the Resulting Mercurials with Acid and Base