Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Kai Helmdach"'
Publikováno v:
Dalton Transactions. 52:326-337
Variation of a single ligand in the W(ii) alkyne complexes of bis(diphenylphosphino)acetylene leads to W(ii)/W(iii) redox potentials spanning a window of 850 mV. The corresponding dinuclear complexes with PdCl2 show differing catalytic activity.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f2d0be21aee160309e4d72c97b8ef901
https://doi.org/10.1039/d2dt02794a
https://doi.org/10.1039/d2dt02794a
Autor:
Mareike Hüttenschmidt, Alexander Villinger, Elisabeth Oberem, Stephan Ludwig, Jabor Rabeah, Wolfram W. Seidel, Ralf Ludwig, Kai Helmdach
Publikováno v:
Chemistry (Weinheim an Der Bergstrasse, Germany)
A pair of diastereomeric dinuclear complexes, [Tp′(CO)BrW{μ‐η2‐C,C′‐κ2‐S,P‐C2(PPh2)S}Ru(η5‐C5H5)(PPh3)], in which W and Ru are bridged by a phosphinyl(thiolato)alkyne in a side‐on carbon P,S‐chelate coordination mode, were syn
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3f8951f9cc427175a0c3108ec6c20d9b
https://doi.org/10.1002/chem.202003120
https://doi.org/10.1002/chem.202003120
Publikováno v:
Organometallics. 36:4844-4853
The terminal phosphine groups at the tungsten bisphosphine alkyne complex [Tp*W(CO)(I)(η2-C,C′-Ph2PC2PPh2)] (2) {Tp* = hydridotris(3,4,5-trimethylpyrazolyl)borate} were selectively oxidized by common methods to form the alkyne complexes 2EE (E = O
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::85baf2b4ea5843479cf8c7ea878cc03e
https://doi.org/10.1021/acs.organomet.7b00747
https://doi.org/10.1021/acs.organomet.7b00747
Autor:
Wolfram W. Seidel, Alexander Villinger, Dirk Hollmann, Stephan Ludwig, Kai Helmdach, Jutta Kösters
Publikováno v:
Chemical Communications. 53:5894-5897
A paramagnetic WIII alkyne complex bearing free terminal diphenylphosphino groups at the side-on coordinated alkyne was synthesized using a stepwise template strategy. This moderately stable metal supported open shell diphosphine shows an unprecedent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::62b9bbb626f98e21f12f085775f56db7
https://doi.org/10.1039/c7cc02114c
https://doi.org/10.1039/c7cc02114c
Publikováno v:
Dalton Transactions. 46:11140-11144
We present the synthesis and coordination chemistry of a series of WII alkyne complexes with symmetric and asymmetric acetylene diphosphines. Chelate-like P,P'-coordination of PtCl2 cause a drastic potential change of the W centered oxidation proving
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::053d60a576086dfc2875ac27f21442f5
https://doi.org/10.1039/c7dt01803g
https://doi.org/10.1039/c7dt01803g
Publikováno v:
Chemical Communications. 52:2616-2619
The synthesis and reactivity of a W(ii) C2I2 complex towards various nucleophiles are described. Soft, aprotic nucleophiles like 4-dimethylaminopyridine (DMAP) lead to substitution of one CO at tungsten, whereas reaction with an excess of benzylamine
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::754598874a9fd8f2c4f4c607995eb0fa
https://doi.org/10.1039/c5cc10397e
https://doi.org/10.1039/c5cc10397e
Publikováno v:
Zeitschrift für anorganische und allgemeine Chemie. 641:2300-2305
The oxo tungsten(IV) alkyne complexes [Tp′W(O)(I)(η2-C2Ph2)] (1), [Tp′W(O)(I){η2-C2(SC2H4SiMe3)2}] (2), and [Tp′W(O)(I){η2-C2(SBn)2}] (3) [Tp′ = hydridotris(3, 5-dimethylpyrazolyl)borate, Bn = benzyl] were synthesized from [Tp′W(O)(CO)(I
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::31866a9ea89fc89a9da4ccfd0cdf2ecd
https://doi.org/10.1002/zaac.201500576
https://doi.org/10.1002/zaac.201500576
Autor:
Steffen Kleinschmidt, David Schallenberg, Kai Helmdach, Alexander Villinger, Alexander Hinz, Wolfram W. Seidel
Publikováno v:
Organometallics. 34:1091-1097
The C/C coupling activity of the cationic Re(III) species [(C5H5)ReBr]+ with different heteroatom-substituted alkynes was investigated. By using the sulfide-substituted bis(benzylsulfanyl)acetylene...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a38ac31a63b80a4f649e962ab8ac827e
https://doi.org/10.1021/acs.organomet.5b00030
https://doi.org/10.1021/acs.organomet.5b00030
Publikováno v:
Dalton transactions (Cambridge, England : 2003). 46(34)
We present the synthesis and coordination chemistry of a series of W
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::534181ab886577d14341a4c9061a2da7
https://pubmed.ncbi.nlm.nih.gov/28650035
https://pubmed.ncbi.nlm.nih.gov/28650035