Zur NMR‐spektroskopischen Untersuchung der Wechselwirkung von AlEt<sub>2</sub>Cl mit n‐Donatoren

Heublein, G.; Kümpfel, W.; Schütz, H.

doi:10.1002/zfch.19780180122

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Initiation Of Polymerization By Electron Transfer1

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Cited by 6 publications

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“…It is largely dependent on the properties of an electron acceptor. When interacting with stronger acceptors (e.g., MCL metals of the third group of the Periodic table) sufficiently strong high polar nv-complexes are formed [59]: This will undoubtedly influence the formation of active particles in the system.…”

Section: Initiation Of Polymerization By Electron Transfermentioning

confidence: 99%

Cationic Polymerization of Vinyl Monomers Under the Action of Metalorganic Compounds

Lyapkov¹,

Ionova²,

Bondaletov³

et al. 2012

Polymerization

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Section: Initiation Of Polymerization By Electron Transfermentioning

confidence: 99%

Cationic Polymerization of Vinyl Monomers Under the Action of Metalorganic Compounds

Lyapkov¹,

Ionova²,

Bondaletov³

et al. 2012

Polymerization

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Zur Wechselwirkung von Donoren mit Alkylaluminiumhalogeniden. III. CNDO/2‐Modellrechnungen

et al. 1986

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The Interaction of Donors with Alkylaluminium Halogenides. III. Model Calculations with the CNDO/2‐Method The quantum chemical model calculations show, that the Lewis acidity of the compounds (CH3)nAlCl3−n (n = 0…3) decreases with increasing n. The influence of the methyl ligands seems to be additive. The heterolysis of the RX bond (R = H, CH3; X = Cl, OH, NH2, CH3) is promoted by the cooperation of the Lewis acids (CH3)nAlCl3−n. Fox X = OH, NH2, CH3 the energy effort is nearly the same, while it is smaller by a third for X = Cl. Before heterolysis the formation of a complex takes place between the Lewis acid and the donor RX. The complex with HCl is more stable than that with NH3.

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Zur Wechselwirkung von Donoren mit Diethylaluminiumchlorid. IV. ¹³C‐NMR‐Untersuchungen zum Ausmaß der Komplexbildung

et al. 1987

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The Interaction of Donors with Diethyl Aluminium Chloride. IV. 13C‐N.M.R.‐Investigations on the Degree of Complex Formation Et2AlCl has some importance for the initiation of cationic polymerizations where its activity can be influenced by the addition of donor compounds. To enlight the elementary processes quantitative 13C‐n.m.r. spectroscopic investigations of the model systems Et2AlCl/pyridine and piperidine, respectively, were carried out. Detailed information are given with regard to the molar ratios of acceptor and donors. The formation of an ionic intermediate complex was observed. The degree of complex formation is higher for piperidine than for pyridine. In the case of pyridine a 1:1 complex is formed. With piperidine a complexation with higher coordination must be assumed.

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Zur NMR‐spektroskopischen Untersuchung der Wechselwirkung von AlEt₂Cl mit n‐Donatoren

Cited by 6 publications

References 5 publications

Cationic Polymerization of Vinyl Monomers Under the Action of Metalorganic Compounds

Cationic Polymerization of Vinyl Monomers Under the Action of Metalorganic Compounds

Zur Wechselwirkung von Donoren mit Alkylaluminiumhalogeniden. III. CNDO/2‐Modellrechnungen

Zur Wechselwirkung von Donoren mit Diethylaluminiumchlorid. IV. ¹³C‐NMR‐Untersuchungen zum Ausmaß der Komplexbildung

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Zur NMR‐spektroskopischen Untersuchung der Wechselwirkung von AlEt2Cl mit n‐Donatoren

Cited by 6 publications

References 5 publications

Cationic Polymerization of Vinyl Monomers Under the Action of Metalorganic Compounds

Cationic Polymerization of Vinyl Monomers Under the Action of Metalorganic Compounds

Zur Wechselwirkung von Donoren mit Alkylaluminiumhalogeniden. III. CNDO/2‐Modellrechnungen

Zur Wechselwirkung von Donoren mit Diethylaluminiumchlorid. IV. 13C‐NMR‐Untersuchungen zum Ausmaß der Komplexbildung

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Zur NMR‐spektroskopischen Untersuchung der Wechselwirkung von AlEt₂Cl mit n‐Donatoren

Zur Wechselwirkung von Donoren mit Diethylaluminiumchlorid. IV. ¹³C‐NMR‐Untersuchungen zum Ausmaß der Komplexbildung