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Statements

Subject Item
n2:RIV%2F62243136%3A_____%2F08%3A%230000054%21RIV11-MPO-62243136
rdf:type
skos:Concept n18:Vysledek
dcterms:description
Half sandwich pentamethylcyclopentadienyltitanium chloroisopropoxides [Ti(eta5-C5Me5)Ti(Oi-Pr)nCl3-n] (n = 1 (1) or 2 (2)) and methylisopropoxides [Ti(eta5-C5Me5)Ti(Oi-Pr)nMe3-n](n = 1(3) or 2(4)) were prepared and characterized by spectroscopic methods, and compound 1 by single crystal X-ray diffraction analysis. Compounds 3 and 4 were reacted with an equimolar quantity of B(C6F5)3, however, only compound 4 afforded a crystalline product of limited stability at ambient temperature. Its single crystal X-ray diffraction analysis revealed that it is the zwitterionic complex [(eta5-C5Me5)Ti(Oi-Pr)2]+[(mu-Me)B(C6F5)3]- (5) and its crystal structure is very similar to the recently reported tert-butoxy complex [(eta5-C5Me5)Ti(Ot-Bu)2]+[(mu-Me)B(C6F5)3]- (6). The 1H, 13C, and 19F NMR spectra in C6D6 solution also showed the features analogous to those of 6. 1D NOESY experiments proved a close through space interaction of irradiated C5Me5 or OCHMe2 protons with the bridging Ti... Me-B group. Half sandwich pentamethylcyclopentadienyltitanium chloroisopropoxides [Ti(eta5-C5Me5)Ti(Oi-Pr)nCl3-n] (n = 1 (1) or 2 (2)) and methylisopropoxides [Ti(eta5-C5Me5)Ti(Oi-Pr)nMe3-n](n = 1(3) or 2(4)) were prepared and characterized by spectroscopic methods, and compound 1 by single crystal X-ray diffraction analysis. Compounds 3 and 4 were reacted with an equimolar quantity of B(C6F5)3, however, only compound 4 afforded a crystalline product of limited stability at ambient temperature. Its single crystal X-ray diffraction analysis revealed that it is the zwitterionic complex [(eta5-C5Me5)Ti(Oi-Pr)2]+[(mu-Me)B(C6F5)3]- (5) and its crystal structure is very similar to the recently reported tert-butoxy complex [(eta5-C5Me5)Ti(Ot-Bu)2]+[(mu-Me)B(C6F5)3]- (6). The 1H, 13C, and 19F NMR spectra in C6D6 solution also showed the features analogous to those of 6. 1D NOESY experiments proved a close through space interaction of irradiated C5Me5 or OCHMe2 protons with the bridging Ti... Me-B group.
dcterms:title
Synthesis and structure of permethylcyclopentadienyltitanium disopropoxide zwitterionic complex Synthesis and structure of permethylcyclopentadienyltitanium disopropoxide zwitterionic complex
skos:prefLabel
Synthesis and structure of permethylcyclopentadienyltitanium disopropoxide zwitterionic complex Synthesis and structure of permethylcyclopentadienyltitanium disopropoxide zwitterionic complex
skos:notation
RIV/62243136:_____/08:#0000054!RIV11-MPO-62243136
n3:aktivita
n13:P n13:V n13:Z
n3:aktivity
P(FT-TA3/078), V, Z(AV0Z40400503)
n3:cisloPeriodika
8 - 9
n3:dodaniDat
n7:2011
n3:domaciTvurceVysledku
n12:4213130 n12:7277962
n3:druhVysledku
n14:J
n3:duvernostUdaju
n17:S
n3:entitaPredkladatele
n10:predkladatel
n3:idSjednocenehoVysledku
398752
n3:idVysledku
RIV/62243136:_____/08:#0000054
n3:jazykVysledku
n8:eng
n3:klicovaSlova
titanium, half-sandwich, titanium isopropoxide, tris(pentafluorophenyl)borane, zwitterionic complex, cationic titanium complex
n3:klicoveSlovo
n5:titanium%20isopropoxide n5:titanium n5:tris%28pentafluorophenyl%29borane n5:zwitterionic%20complex n5:cationic%20titanium%20complex n5:half-sandwich
n3:kodStatuVydavatele
CZ - Česká republika
n3:kontrolniKodProRIV
[7B5F98A48977]
n3:nazevZdroje
Collection of Czechoslovak Chemical Communications
n3:obor
n16:CA
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
6
n3:projekt
n4:FT-TA3%2F078
n3:rokUplatneniVysledku
n7:2008
n3:svazekPeriodika
76 (2008)
n3:tvurceVysledku
Gyepes, R. Mach, Karel Varga, Vojtěch Kubišta, J. Pinkas, J. Horáček, M.
n3:zamer
n15:AV0Z40400503
s:issn
0010-0765
s:numberOfPages
16