## Abstract Terminal acetylenes react with __cis__βRuMe~2~(PMe~3~)~4~ to form the bis(acetylido) complexes __cis__/__trans__βRu(Cβ‘CR)~2~(PMe~3~)~4~ in good yield. The structures of __trans__β2 (R = Ph), __cis__β3 (R = __p__βC~6~H~4~βOMe), __trans__β4 (R = __p__βC~6~H~4~βMe), __cis__β6 (R = Me), __t
Symmetrical Bis(acetylido)ruthenium(II) Complexes
β Scribed by Leslie D. Field; Alison M. Magill; Timothy K. Shearer; Scott J. Dalgarno; Mohan M. Bhadbhade
- Publisher
- John Wiley and Sons
- Year
- 2011
- Tongue
- English
- Weight
- 498 KB
- Volume
- 2011
- Category
- Article
- ISSN
- 1434-1948
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β¦ Synopsis
Abstract
Symmetrical, mononuclear bis(acetylido)ruthenium(II) complexes were prepared by the reaction of [transβRuMe~2~(dmpe)~2~] [dmpe = 1,2βbis(dimethylphosphanyl)ethane] with terminal alkynes. The complexes were characterised by multinuclear NMR spectroscopy and Xβray crystallography. In some cases, the complexes catalyse the headβtoβhead dimerisation of terminal alkynes to yield organic butenynes. The regiochemistry of this dimerisation depends on the solvent used; methanol results in the isolation of (Z)βbutenynes, whereas toluene gives predominantly (E) isomers.
π SIMILAR VOLUMES
## Abstract The existence of two independent chromophores in [Ru(bipy)~2~(H~2~V)]^+^, where H~2~V^β^ = violurate anion and bipy = 2,2β²bipyridine, was demonstrated by comparing its resonance Raman spectra with those displayed by the [Ru(H~2~V)~3~]^β^ analogue. In the former, the electronic band at 4
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