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Complexes of Trimethylphosphine and Dimethylphenylphosphine with Co(II) and Ni(II) on Hectorite and on Zeolites X and Y

Published online by Cambridge University Press:  02 April 2024

Robert A. Schoonheydt
Affiliation:
Centrum voor Oppervlaktescheikunde en Colloïdale Scheikunde, Katholieke Universiteit Leuven, De Croylaan 42, B-3030 Leuven (Heverlee), Belgium
Rudi Van Overloop
Affiliation:
Centrum voor Oppervlaktescheikunde en Colloïdale Scheikunde, Katholieke Universiteit Leuven, De Croylaan 42, B-3030 Leuven (Heverlee), Belgium
Mathieu Van Hove
Affiliation:
Centrum voor Oppervlaktescheikunde en Colloïdale Scheikunde, Katholieke Universiteit Leuven, De Croylaan 42, B-3030 Leuven (Heverlee), Belgium
Johan Verlinden
Affiliation:
Centrum voor Oppervlaktescheikunde en Colloïdale Scheikunde, Katholieke Universiteit Leuven, De Croylaan 42, B-3030 Leuven (Heverlee), Belgium

Abstract

The gas-phase adsorption of trimethylphosphine onto hectorite, exchanged with Co(II) and Ni(II), gives trigonal complexes of the type [M(Ol)3(PMe3)]2+ (M = Co, Ni). Ten Dq values of PMe3 are 2.1 and 2.4 times larger than those of the structural oxygens or solvent molecules. The same complexes form between dimethylphenylphosphine and Ni(II) on hectorite and on synthetic zeolite Y. Co(II) forms pseudotetrahedral complexes with dimethylphenylphosphine ligands. These surface-immobilized transition-metal complexes interact strongly with NO and CH ≡ CH and to a lesser extent with CO and CH2=CH2, giving new types of complexes.

Резюме

Резюме

Адсорбция газовой фазы трехметилфосфина на гекторите, обмененным Co(II) и Ni(II) дает тригональные комплексы типа [M(Ol)3(PMe3)]2+ (где M = Co, Ni). Десять величин Dq для PMe3 являются 2,1 и 2,4 раза больше, чем эти же величины для структурных атомов кислорода или молекул растворителя. Такие же комплексы формируются между двуметилфенилфосфином и Ni(II) на гекторите и на синтетическим цеолите У. Co(II) формирует псевдотетраэдрические комплексы с двуметилфенилфосфиновыми лигандами. Эти поверхностно связанные комплексы переходных металлов сильно взаимодействуют c NO и CH ≠ CH и слабее c CO и CH2 = CH2, формируя новые типы комплексов. [E.G.]

Resümee

Resümee

Die Gasphasenadsorption von Trimethylphosphin an mit Co(II) und Ni(II) ausgetauschten Hektorit ergibt trigonale Komplexe vom Typ [M(Ol)3(PMe3)]2+ (M = Co, Ni). Die 10-Dq-Werte von PMe3 sind 2,1 und 2,4 mal größer als die der Struktur-Sauerstoffe oder der Lösungsmittelmoleküle. Die gleichen Komplexe bilden sich zwischen Dimethylphenylphosphin und Ni(II) an Hektorit und an synthetischem Zeolith Y. Co(II) bildet pseudotetraedrische Komplexe mit Dimethylphenylphosphin-Liganden. Diese Oberflächen-immobilisierten Übergangsmetallkomplexe zeigen starke Wechselwirkung mit MO und CH ≡ CH und geringere Wechselwirkung mit CO und CH2=CH2, wobei neue Komplextypen entstehen. [U.W.]

Résumé

Résumé

L'adsorption du gaz trimethylphosphine sur hectorite, échangée par Ni(II) et Co(II), mène aux complexes trigonaux du type [M(Ol)3(PMe3)]2+ (M = Co, Ni). Les valeurs de 10 Dq du ligand PMe3 sont 2,1–2,4 fois plus larges que celles des oxygènes du réseau ou des molécules du solvent. Les mêmes complexes sont synthétisés par adsorption de diméthylphenylphosphine sur hectorite et sur la zéolithe synthétique Y, échangées par Ni(II). Le Co(II) forme des complexes pseudotétraédriques avec diméthyl-phenylphospine. Tous ces complexes de surface réagissent fortement avec NO et acétylène et faiblement avec CO et ethylene.

Type
Research Article
Copyright
Copyright © 1984, The Clay Minerals Society

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