Multinuclear magnetic resonance studies of macrocyclic complexation in room-temperature molten salts

1984 ◽  
Vol 23 (17) ◽  
pp. 2557-2558 ◽  
Author(s):  
Rick R. Rhinebarger ◽  
John W. Rovang ◽  
Alexander I. Popov
Keyword(s):  
Magnetic Resonance ◽  
Molten Salts ◽  
Room Temperature ◽  
Magnetic Resonance Studies ◽  
Multinuclear Magnetic Resonance

Multinuclear magnetic resonance studies of 2-aryl-1,3,4-selenadiazoles

2012 ◽  
Vol 50 (4) ◽  
pp. 271-277 ◽  
Author(s):  
Błażej Gierczyk ◽  
Wojciech Ostrowski ◽  
Marcin Kaźmierczak
Keyword(s):  
Magnetic Resonance ◽  
Magnetic Resonance Studies ◽  
Multinuclear Magnetic Resonance

Magnetic resonance studies of metal–olefin complexes. I. Electron spin resonance spectra of γ-irradiated silver perchlorate cycloalkene complexes

1970 ◽  
Vol 48 (17) ◽  
pp. 2740-2744 ◽  
Author(s):  
D. R. Gee ◽  
K. E. Russell ◽  
J. K. S. Wan
Keyword(s):  
Electron Spin Resonance ◽  
Magnetic Resonance ◽  
Spin Density ◽  
Room Temperature ◽  
Paramagnetic Species ◽  
Magnetic Resonance Studies ◽  
Silver Perchlorate ◽  
Spin Resonance ◽  
The Stability ◽  
Polycrystalline Silver

Paramagnetic species have been detected in γ-irradiated polycrystalline silver perchlorate – cycloalkene complexes at room temperature and identified as Ag+ cycloalkenyl radicals, with spin density on Ag decreasing from 4.6 to 1.5% with increasing size of the cycloalkenyl ring. The extent of the spin density on Ag increases with the stability of the parent complexes.

Multinuclear magnetic resonance studies of five silver(I) trinuclear pyrazolate complexes

2020 ◽  
Vol 32 (1) ◽  
pp. 215-224 ◽  
Author(s):  
Kiyoshi Fujisawa ◽  
Mitsuki Okano ◽  
Manuel Martín-Pastor ◽  
Rubén López-Sánchez ◽  
José Elguero ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Magnetic Resonance Studies ◽  
Multinuclear Magnetic Resonance

Reactivity of Alkoxyethynyl(trimethyl)silane, -germane and -stannane towards Trialkylboranes. Organometallic-Substituted Enol Ethers

2003 ◽  
Vol 58 (11) ◽  
pp. 1035-1040 ◽  
Author(s):  
Bernd Wrackmeyera ◽  
Sergej V. Gruener ◽  
Alla S. Zolotareva
Keyword(s):  
Magnetic Resonance ◽  
Magnetic Resonance Spectroscopy ◽  
Room Temperature ◽  
Quantitative Yield ◽  
Resonance Spectroscopy ◽  
Enol Ethers ◽  
Multinuclear Magnetic Resonance

Abstract Methoxyethynyl(trimethyl)silane (1a) reacts at 100°C very slowly with triethylborane (4) to give a mixture of alkenes, one of which is the 1,1-organoboration product (Z)-1-methoxy-1-trimethylsilyl- 2-diethylboryl-but-1-ene (7a). Methoxyethynyl(trimethyl)germane (2a) reacts within minutes at 60 - 70°C with 4, tripropylborane (5) and 9-ethyl-9-borabicyclo[3.3.1]nonane (6) by 1,1-organoboration in the usual regio- and stereospecific way to give the corresponding alkenes (9a - 11a). The analogous reactions of the ethoxyethynyl(trimethyl)germane (2b) require longer heating and are accompanied by decomposition of 2b. Ethoxyethynyl(trimethyl)stannane (3b) reacts with the trialkylboranes 4- 6 already below room temperature by 1,1-organoboration to give the alkenes (12b - 14b) in quantitative yield. The compound 3b also reacts with the alkenes, e.g. 9a, 13b, 14b, to give novel organometallicsubstituted dienes. All products were characterised by multinuclear magnetic resonance spectroscopy (1H, 11B, 13C, 29Si, and 119Sn NMR).

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