scholarly journals Nuclear Quadrupole Resonance in Coordination Chemistry. Identification of Bridging and Terminal Chlorines in the Mercuric Chloride-4-picoline N-Oxide Complex

1979 ◽  
Vol 32 (4) ◽  
pp. 931 ◽  
Author(s):  
L Ramakrishnan ◽  
S Soundararajan ◽  
VSS Sastry ◽  
J Ramakrishna
Keyword(s):  
Coordination Chemistry ◽  
Temperature Dependence ◽  
Nuclear Quadrupole Resonance ◽  
Mercuric Chloride ◽  
Room Temperature ◽  
Quadrupole Resonance ◽  
Nuclear Quadrupole

The temperature dependence of the chlorine-35 n.q.r. in the mercuric chloride-4-picoline N-oxide complex has been studied from 77 K to room temperature, and the results are used to assign the observed frequencies to terminal and bridging chlorines.

Quench frequency effects on the nuclear quadrupole resonance of orthoiodophenol

1968 ◽  
Vol 21 (9) ◽  
pp. 2141 ◽  
Author(s):  
TS Clarkson ◽  
WPA Sullivan
Keyword(s):  
Nuclear Quadrupole Resonance ◽  
Room Temperature ◽  
Nuclear Quadrupole Resonance Signal ◽  
Resonance Signal ◽  
Frequency Effects ◽  
Quadrupole Resonance ◽  
Nuclear Quadrupole

When the quench frequency of a self-quenched spectrometer is varied, the plot of the 127I nuclear quadrupole resonance signal against quench frequency in o-iodophenol, at room temperature, exhibits a number of maxima. Hitherto, analogous plots with chlorine compounds, using self-quenched spectrometers, gave only a maximum; this is briefly discussed.

Nuclear Quadrupole Resonance Study of 35Cl in Chloral Hydrate, CCl3CH(OH)2, and Chloral Deuterate, CCl3CH(OD)2

1967 ◽  
Vol 22 (7) ◽  
pp. 1124-1126 ◽  
Author(s):  
Dieter Biedenkapp ◽  
Alarich Weiss
Keyword(s):  
Nuclear Quadrupole Resonance ◽  
Crystal Field ◽  
Room Temperature ◽  
Chloral Hydrate ◽  
Temperature Range ◽  
Field Effects ◽  
Quadrupole Resonance ◽  
Nuclear Quadrupole

The nuclear quadrupole resonance (NQR) spectra of 35Cl in chloral hydrate and chloral deuterate were investigated in the temperature range between 77°K and 323 °K. Two modifications have been found for each substance. One of the modifications is unstable at room temperature and changes within a few weeks into the stable modification. The NQR spectrum can be explained in terms of crystal field effects.

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