. . . "Byla pops\u00E1na aktivace vazby Ti-C v titanocenov\u00FDch komplexech alkiny, alkeny, sirovod\u00EDkem a vliv substituce ligand\u016F na vznik vazby Ti-C. Byla objevena aktivace uhl\u00EDkov\u00E9ho \u0159et\u011Bzce v ansa-slou\u010Denin\u00E1ch a vznik Si-Si m\u016Fstku p\u0159i zm\u011Bn\u011B valen\u010Dn\u00EDho stavu Ti a Zr."@cs . . " alkylsilylhydrides" . . . . "8"^^ . "http://www.isvav.cz/projectDetail.do?rowId=IAA400400708"^^ . "Aktivace mal\u00FDch molekul titanocenov\u00FDmi(II) a zirkonocenov\u00FDmi(II) komplexy." . "8"^^ . . "Bude zkoum\u00E1na reaktivita term\u00E1ln\u011B stabiln\u00EDch monomern\u00EDch titanocen\u016F(TiII) v\u016F\u010Di molekul\u00E1m vod\u00EDku, dus\u00EDku, s\u00EDry nebo fosforu, alkylsilylhydrid\u016Fm, borohydrid\u016Fm a jednoduch\u00FDm alken\u016Fm \u010Di alkin\u016Fm. Titanocenov\u00E9 a zirkonocenov\u00E9 slou\u010Deniny obsahuj\u00EDc\u00ED sigma-Ti-C termin\u00E1ln\u00ED vazby, sigma-Ti-C vazby intramolekul\u00E1rn\u011B v\u00E1zan\u00E9 na cyklopentadienyly a pi-Ti-C vazby (back bonding) budou hydrogenov\u00E1ny p\u0159i n\u00EDzk\u00E9m a\u017E m\u00EDrn\u00E9m tlaku pro zji\u0161t\u011Bn\u00ED jejich citlivosti k hydrogenol\u00FDze a pro synt\u00E9zu strukturn\u011B nov\u00FDch komplex\u016F. Titanocenov\u00E9 a zirkonocenov\u00E9 komplexy [M(C5H5-nMen)2(bis(trimethylsilyl)ethin)] (n = 0-5) budou zkoum\u00E1ny jako katalyz\u00E1tory dimerizace termin\u00E1ln\u00EDch alkin\u016F a hydroaminace alkin\u016F a alken\u016F. Analogicky \u0159ada titanocen\u016F a zirkonocen\u016F tvo\u0159en\u00FDch in-situ bude stabilizov\u00E1na ethenem a dal\u0161\u00EDmi nenasycen\u00FDmi uhlovod\u00EDky a bude zkoum\u00E1no jejich vyu\u017Eit\u00ED v organometalick\u00E9 synt\u00E9ze a katal\u00FDze tvorby C-C vazeb." . . . . . . " phosphorus" . . "IAA400400708" . . "Activation of small molecules by titanocene(II) and zirconocene(II) complexes."@en . "Activation of the Ti-C bond in titanocene complexes by alkynes, alkenes and hydrogen sulfide was reported, as well as the effect of their substitution on Ti-C formation. Reduction induced ansa bridge formation or activation in Ti, Zr complexes was found."@en . "Reactivity of thermally stable monomeric titanocenes(TiII) towards dihydrogen, dinitrogen, sulfur or phosphorus, alkylsilylhydrides, borohydrides, and simple alkenes and alkynes. Hydrogenations at low-to-moderate pressure will be established carried out for titanocene and zirconocene compounds containing sigma-Ti-C terminal, sigma-Ti-C cyclopentadienyl ring-tethered, and pi-Ti-C (back bonding) bonds in order to determine their susceptibility to hydrogenolysis and to synthesize structurally new complexes. The titanocene and zirconocene [M(C5H5-nMen)2(bis(trimethylsilyl)ethyne)] (n = 0-5) complexes will be investigated as catalysts for dimerization of terminal alkynes, and hydroamination of alkynes and alkenes. Analogously, the series of titanocenes or zirconocenes at the onset of their formation will be stabilized by ethene or other unsaturated hydrocarbons to examine their utilization in organometallic synthesis and catalysis."@en . " zirconocene" . . . "0"^^ . " dinitrogen" . . " hydrogenation" . "2011-12-31+01:00"^^ . "1"^^ . "titanocene" . " linear dimerization of terminal alkynes" . "0"^^ . "2007-01-01+01:00"^^ . " sulfur" . "2013-06-28+02:00"^^ . " low-valent complexes" . " monomeric titanocene" . "2011-03-18+01:00"^^ . " alkenes" . . . "titanocene; zirconocene; monomeric titanocene; low-valent complexes; dihydrogen; dinitrogen; sulfur; phosphorus; alkylsilylhydrides; alkenes; alkynes; hydrogenation; linear dimerization of terminal alkynes; catalytic amination"@en . " alkynes" . " dihydrogen" .