About: Ion pairs from redox reaction of decamethylchromocene with cyclopentadienyltitanium trichlorides

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About: Ion pairs from redox reaction of decamethylchromocene with cyclopentadienyltitanium trichlorides Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
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. (en)
Title	Ion pairs from redox reaction of decamethylchromocene with cyclopentadienyltitanium trichlorides Ion pairs from redox reaction of decamethylchromocene with cyclopentadienyltitanium trichlorides (en)
skos:prefLabel	Ion pairs from redox reaction of decamethylchromocene with cyclopentadienyltitanium trichlorides Ion pairs from redox reaction of decamethylchromocene with cyclopentadienyltitanium trichlorides (en)
skos:notation	RIV/61388955:_____/12:00376246!RIV13-AV0-61388955
http://linked.open...avai/riv/aktivita	P V Z
http://linked.open...avai/riv/aktivity	P(KAN100400701), P(LC06070), V, Z(AV0Z40400503)
http://linked.open...iv/cisloPeriodika	MAY 2012
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Horáček, Michal Mach, Karel Kubišta, Jiří Pinkas, Jiří
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav fyzikální chemie J. Heyrovského AV ČR, v.v.i.
http://linked.open...dnocenehoVysledku	142986
http://linked.open...ai/riv/idVysledku	RIV/61388955:_____/12:00376246
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	chromium; chromocenium; titanium (en)
http://linked.open.../riv/klicoveSlovo	chromium chromocenium titanium
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[5FAB3D8D1023]
http://linked.open...i/riv/nazevZdroje	Inorganic Chemistry Communications
http://linked.open...in/vavai/riv/obor	CF
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...vavai/riv/projekt	Hybride nanocomposite materials The structure and synthetic applications of transition metal complexes
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	19
http://linked.open...iv/tvurceVysledku	Mach, Karel Pinkas, Jiří Gyepes, R. Horáček, Michal Kubišta, Jiří Varga, V.
http://linked.open...ain/vavai/riv/wos	000303293400016
http://linked.open...n/vavai/riv/zamer	Struktura, reaktivita a dynamika molekulárních a biomolekulárních systémů: teorie, experiment, aplikace
issn	1387-7003
number of pages	5 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.inoche.2012.02.003

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