ChemInform Abstract: A (1)H AND (121)SB NMR STUDY OF IONIZATION REACTIONS IN ANTIMONY PENTACHLORIDE DONOR - ACCEPTOR ADDUCT SYSTEMS IN SOLUTION

Acetic anhydride forms compounds of 1 : 1 composition with trihalides of boron, aluminium, with antimony pentachloride, and with the trioxides of sulphur and selenium, of 1 : 2 composition with tetrahalides of tin and titanium. From molar conductance, molecular weight determinations and i.r. spectral studies, these are found to be simple donor-acceptor complexes. However, in the case of antimony pentachloride and aluminium tribromide, the presence of acetylium ion is indicated.A number of bases also form 1 : 1 compounds with acetic anhydride. From molar conductance and i.r. spectral studies, their structures have also been elucidated.

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Synthesis of electron donor–acceptor polyunsaturated methylenepyran Fischer type carbene complexes: dynamic 1H-NMR study and solvatochromic properties

Journal of Organometallic Chemistry ◽

10.1016/s0022-328x(00)00940-2 ◽

2001 ◽

Vol 626 (1-2) ◽

pp. 37-42 ◽

Cited By ~ 21

Author(s):

F Robin-Le Guen ◽

P Le Poul ◽

B Caro ◽

R Pichon ◽

N Kervarec

Keyword(s):

1H Nmr ◽

Electron Donor ◽

Carbene Complexes ◽

Nmr Study ◽

Donor Acceptor ◽

Dynamic 1H Nmr

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Notizen: Darstellung und IR-Spektrum von OsO4 · 2 SbCl5 / Preparation and IR Spectrum of OsO4 · 2 SbCl5

Zeitschrift für Naturforschung B ◽

10.1515/znb-1980-1222 ◽

1980 ◽

Vol 35 (12) ◽

pp. 1587-1588 ◽

Cited By ~ 6

Author(s):

Kurt Dehnicke ◽

Rainer Lößberg

Keyword(s):

Ir Spectrum ◽

Ligand Exchange ◽

Exchange Reactions ◽

Antimony Pentachloride ◽

Acceptor Complex ◽

Donor Acceptor

Abstract Osmiumtetroxide and antimony pentachloride form a donor acceptor complex, OsO4 · 2 SbCl5. According to the IR spectrum the complex contains OsOSb bridges. With VCl4, TiCl4, MOCl5 and osmiumtetroxide rapid ligand exchange reactions occur, forming VOCl3, TiOCl2 and several oxochlorides of molybdenum and OsCl4, respectively.

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119Sn, 15N, 13C, and 1H NMR Study of the Intramolecular Sn-N Donor-Acceptor Interaction in [2-(Dimethylaminomethyl)phenyl]stannanes

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc19980977 ◽

1998 ◽

Vol 63 (7) ◽

pp. 977-989 ◽

Cited By ~ 48

Author(s):

Aleš Růžička ◽

Vladimír Pejchal ◽

Jaroslav Holeček ◽

Antonín Lyčka ◽

Klaus Jacob

Keyword(s):

1H Nmr ◽

Nmr Spectra ◽

Intramolecular Interaction ◽

Coupling Constants ◽

Acceptor Interaction ◽

H Nmr ◽

Nmr Parameters ◽

Nmr Study ◽

Donor Acceptor ◽

Characteristic Values

119Sn, 15N, 13C, and 1H NMR spectra were studied for [2-(dimethylaminomethyl)phenyl]stannanes, R1R2R3R4Sn or R1R2R24Sn, where R1, R2, and R3 are 1-butyl, Cl or Br, the same or different, and R4 is 2-(dimethylaminomethyl)phenyl. The occurrence of intramolecular interaction between the nitrogen and tin atoms was demonstrated based on changes in the characteristic values of the NMR parameters of these nuclides (δ(15N), δ(119Sn), J(119Sn,15N), and their interrelations, as well as on the relatively high values of the coupling constants 3J(119Sn,13C(CH2)).

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