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Statements

Subject Item
n2:RIV%2F61388955%3A_____%2F12%3A00376246%21RIV13-AV0-61388955
rdf:type
skos:Concept n12:Vysledek
dcterms:description
Decamethylchromocene [Cr(η5-C5Me5)2] reacted with cyclopentadienyltitaniumtrichlorides [Ti(η5-C5H5-nMen)Cl3] (n=0–5) in toluene to precipitate yellow finely crystalline ion pairs [Cr(η5-C5Me5)2]+[Ti(η5-C5H5-nMen)Cl3] (1–6). Evidence for the chromocenium cation and titanate anions was obtained by paramagnetic 1H NMR spectra of 1–6 in CD2Cl2. The resonance of the cation was invariant at δ 6.9 ppm (Δν1/20.4 kHz) whereas resonances of the titanate anions were shifting in response to the number of methyl groups (δ 10.5–8.4 ppm (CpMe) and δ 26.6–39.0 ppm (CpH)). The presence of toluene of crystallization in 1–6 was observed by 1H NMR spectra, and in the crystal structure of 6. Crystallization of 6 from tetrahydrofuran afforded solvent-free crystals of 6A. In crystal structures of both 6 and 6A the [Ti(η5-C5Me5)Cl3]– titanate anion possessed shorter Ti–Cg distances and longer Ti–Cl bonds than the neutral species. Decamethylchromocene [Cr(η5-C5Me5)2] reacted with cyclopentadienyltitaniumtrichlorides [Ti(η5-C5H5-nMen)Cl3] (n=0–5) in toluene to precipitate yellow finely crystalline ion pairs [Cr(η5-C5Me5)2]+[Ti(η5-C5H5-nMen)Cl3] (1–6). Evidence for the chromocenium cation and titanate anions was obtained by paramagnetic 1H NMR spectra of 1–6 in CD2Cl2. The resonance of the cation was invariant at δ 6.9 ppm (Δν1/20.4 kHz) whereas resonances of the titanate anions were shifting in response to the number of methyl groups (δ 10.5–8.4 ppm (CpMe) and δ 26.6–39.0 ppm (CpH)). The presence of toluene of crystallization in 1–6 was observed by 1H NMR spectra, and in the crystal structure of 6. Crystallization of 6 from tetrahydrofuran afforded solvent-free crystals of 6A. In crystal structures of both 6 and 6A the [Ti(η5-C5Me5)Cl3]– titanate anion possessed shorter Ti–Cg distances and longer Ti–Cl bonds than the neutral species.
dcterms:title
Ion pairs from redox reaction of decamethylchromocene with cyclopentadienyltitanium trichlorides Ion pairs from redox reaction of decamethylchromocene with cyclopentadienyltitanium trichlorides
skos:prefLabel
Ion pairs from redox reaction of decamethylchromocene with cyclopentadienyltitanium trichlorides Ion pairs from redox reaction of decamethylchromocene with cyclopentadienyltitanium trichlorides
skos:notation
RIV/61388955:_____/12:00376246!RIV13-AV0-61388955
n12:predkladatel
n13:ico%3A61388955
n3:aktivita
n5:V n5:Z n5:P
n3:aktivity
P(KAN100400701), P(LC06070), V, Z(AV0Z40400503)
n3:cisloPeriodika
MAY 2012
n3:dodaniDat
n14:2013
n3:domaciTvurceVysledku
n10:7763743 n10:7277962 n10:6327230 n10:9689907
n3:druhVysledku
n8:J
n3:duvernostUdaju
n19:S
n3:entitaPredkladatele
n20:predkladatel
n3:idSjednocenehoVysledku
142986
n3:idVysledku
RIV/61388955:_____/12:00376246
n3:jazykVysledku
n11:eng
n3:klicovaSlova
chromium; chromocenium; titanium
n3:klicoveSlovo
n16:chromium n16:chromocenium n16:titanium
n3:kodStatuVydavatele
NL - Nizozemsko
n3:kontrolniKodProRIV
[5FAB3D8D1023]
n3:nazevZdroje
Inorganic Chemistry Communications
n3:obor
n15:CF
n3:pocetDomacichTvurcuVysledku
4
n3:pocetTvurcuVysledku
6
n3:projekt
n6:LC06070 n6:KAN100400701
n3:rokUplatneniVysledku
n14:2012
n3:svazekPeriodika
19
n3:tvurceVysledku
Kubišta, Jiří Horáček, Michal Varga, V. Mach, Karel Pinkas, Jiří Gyepes, R.
n3:wos
000303293400016
n3:zamer
n17:AV0Z40400503
s:issn
1387-7003
s:numberOfPages
5
n18:doi
10.1016/j.inoche.2012.02.003