Time-resolved spectroscopic investigation of chloroaniline and oxetane related compounds

2007 ◽  
Author(s):  
Lai-man Chu
Keyword(s):  
Spectroscopic Investigation ◽  
Time Resolved ◽  
Related Compounds

Multimodal spectroscopic investigation of the conformation and local environment of biomolecules at an electrified interface

2020 ◽  
Vol 8 (31) ◽  
pp. 7024-7030
Author(s):  
Sasha A. Moonitz ◽  
Noah Shepard ◽  
Rodrigo Noriega
Keyword(s):  
Spectroscopic Investigation ◽  
Local Environment ◽  
Time Resolved Fluorescence ◽  
Time Resolved ◽  
Mid Infrared ◽  
Electrochemically Active ◽  
Electrified Interface

A combination of mid-infrared plasmons and time-resolved fluorescence are used to probe biomolecules at a buried electrochemically active interface.

Time-resolved luminescence of diphenylally anions and related compounds

1992 ◽  
Author(s):  
Ronald N. Young ◽  
Brian Brocklehurst ◽  
David A. Shaw
Keyword(s):  
Time Resolved ◽  
Related Compounds

Beiträge zur Chemie des Phosphors, 621 Zur Frage des 31P-kernresonanzspektroskopischen Nachweises von monomerem und dimerem Phenylphosphor und der Ringgröße von Organyl-cyclophosphanen.

1976 ◽  
Vol 31 (5) ◽  
pp. 558-564 ◽  
Author(s):  
Marianne Baudler ◽  
Burkhard Carlsohn ◽  
Wolfgang Böhm ◽  
Goswin Reuschenbach
Keyword(s):  
Spectroscopic Investigation ◽  
Chemical Shifts ◽  
High Yield ◽  
Ring Size ◽  
Nmr Spectrum ◽  
Spectroscopic Evidence ◽  
Nmr Parameters ◽  
Similar Chemical ◽  
First Time ◽  
Related Compounds

The weak resonances at + 22 and + 49 ppm appearing in the 31P NMR spectrum of melts or solutions of (PPh)5 that have been attributed previously in the literature to “dimeric” and “monomeric phenylphosphorus” are caused by (PPh)6 and (PPh)4, respectively. This was proved by comparison with the 31P NMR parameters of related compounds and by 31P NMR spectroscopic investigation of authentic samples of (PPh)6 and (PPh)4, the latter of which was prepared in high yield from (Me3Si)PhP–PPh–PPh(SiMe3) and PhPCl2. (PEt)4 and mixed-substituted phenyl-ethyl-cyclotetraphosphanes exhibit similar chemical shifts as (PPh)4, corresponding mixed-substituted cyclohexaphosphanes have similar chemical shifts as (PPh)6. Generally, cyclophosphanes establish an equilibrium between (PR)n-species of different ring-size. Probably, the ring-interconversion proceeds via a multi-center mechanism. No 31P NMR spectroscopic evidence for the existence of free PPh or P2Ph2 under the conditions described could be detected. On thermolysis of (PEt)4 the existence of (PEt)3 was proved for the first time.

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