A STUDY OF REVERSIBLE BINDING OF MOLECULAR OXYGEN TO COBALT(II) OCTAETHYLPORPHYRIN BY57Co MÖSSBAUER EMISSION SPECTROSCOPY

1978 ◽  
Vol 7 (4) ◽  
pp. 353-356 ◽  
Author(s):  
Hiroshi Sakai ◽  
Yutaka Maeda ◽  
Hisanobu Ogoshi ◽  
Hiroshi Sugimoto ◽  
Zen-ichi Yoshida
2016 ◽  
Vol 65 (1) ◽  
pp. 61-66 ◽  
Author(s):  
G. K. Fukin ◽  
M. A. Samsonov ◽  
A. I. Poddel’sky ◽  
V. K. Cherkasov

2001 ◽  
Vol 3 (1) ◽  
pp. 17-23 ◽  
Author(s):  
Alex V. Isarov ◽  
John Chrysochoos

The photoreactivity of zinc tetraphenylporphyrin (ZnTPP) in the presence of photoexcited CdS nanoparticles and molecular oxygen in 2-propanol has been revisited. The photodecomposition of ZnTPP in 2-propanol, in the presence of CdS(e-CB/h+VB)and molecular oxygen, is linked to isopropyl free radicals formed by both hole transfer from CdS(h+VB)to(CH3)2CHOH and the reaction of superoxide ion(O2−)with 2-propanol. Isopropyl free radicals react with ZnTPP, leading to the formation ofZnTPP•−. Intermediate paramagnetic species monitored by EPR spectroscopy(g=2.0029,ΔH=5.7G)were characterized as superoxides formed in the reaction ofZnTPP•−withO2. Further transformations of such EPR-active species lead to the formation of diamagnetic intermediate photoproducts of ZnTPP observed by absorption and emission spectroscopy.


ChemPhysChem ◽  
2012 ◽  
Vol 13 (17) ◽  
pp. 3773-3776 ◽  
Author(s):  
Georgy K. Fukin ◽  
Evgenii V. Baranov ◽  
Andrey I. Poddel'sky ◽  
Vladimir K. Cherkasov ◽  
Gleb A. Abakumov

2006 ◽  
Vol 12 (14) ◽  
pp. 3916-3927 ◽  
Author(s):  
Vladimir K. Cherkasov ◽  
Gleb A. Abakumov ◽  
Ekaterina V. Grunova ◽  
Andrey I. Poddel'sky ◽  
Georgy K. Fukin ◽  
...  

1996 ◽  
Vol 76 (14) ◽  
pp. 2448-2451 ◽  
Author(s):  
P. Glans ◽  
K. Gunnelin ◽  
P. Skytt ◽  
J.-H. Guo ◽  
N. Wassdahl ◽  
...  

Author(s):  
R. F. Egerton

An important parameter governing the sensitivity and accuracy of elemental analysis by electron energy-loss spectroscopy (EELS) or by X-ray emission spectroscopy is the signal/noise ratio of the characteristic signal.


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