Preparation and characterization of a novel oxoiron(IV) chlorin .pi.-cation radical complex. The first model for compound I of chlorin-containing heme enzymes

1992 ◽  
Vol 31 (20) ◽  
pp. 4042-4043 ◽  
Author(s):  
Shinji Ozawa ◽  
Yoshihito Watanabe ◽  
Isao Morishima
Keyword(s):  
Cation Radical ◽  
Heme Enzymes ◽  
Compound I ◽  
Radical Complex

Models for peroxidase compound I: generation and spectroscopic characterization of new oxoferryl porphyrin .pi. cation radical species

1992 ◽  
Vol 31 (21) ◽  
pp. 4404-4409 ◽  
Author(s):  
D. Mandon ◽  
R. Weiss ◽  
K. Jayaraj ◽  
A. Gold ◽  
J. Terner ◽  
...  
Keyword(s):  
Cation Radical ◽  
Spectroscopic Characterization ◽  
Compound I ◽  
Radical Species

Preparation and characterization of an A1u (Oxo) iron(IV) porphyrin .pi.-cation-radical complex

1992 ◽  
Vol 31 (6) ◽  
pp. 1110-1112 ◽  
Author(s):  
Hiroshi Fujii ◽  
Kazuhiko Ichikawa
Keyword(s):  
Cation Radical ◽  
Radical Complex

ENDOR Study of Oxoiron(IV) Porphyrin π-Cation Radical Complexes as Models for Compound I of Heme Enzymes

2009 ◽  
Vol 38 (1) ◽  
pp. 68-69 ◽  
Author(s):  
Akihiro Takahashi ◽  
Yasunori Ohba ◽  
Seigo Yamauchi ◽  
Hiroshi Fujii
Keyword(s):  
Cation Radical ◽  
Heme Enzymes ◽  
Compound I

Detection and Characterization of the Lignin Peroxidase Compound II−Veratryl Alcohol Cation Radical Complex†

Biochemistry ◽  
1997 ◽  
Vol 36 (46) ◽  
pp. 14181-14185 ◽  
Author(s):  
Aditya Khindaria ◽  
Guojun Nie ◽  
Steven D. Aust
Keyword(s):  
Lignin Peroxidase ◽  
Cation Radical ◽  
Veratryl Alcohol ◽  
Radical Complex ◽  
Compound Ii

Synthesis and Characterization of New Zinc Phthalocyanine - Dodecenyl Succinic Anhydride Benzoic Groups

2020 ◽  
Vol 17 (6) ◽  
pp. 488-495
Author(s):  
Hussein Ali Al-Bahrani ◽  
Mohanad Mousa Kareem ◽  
Abdul Amir Kadhum ◽  
Nour A. Alrazzak
Keyword(s):  
Salicylic Acid ◽  
Succinic Anhydride ◽  
Zinc Phthalocyanine ◽  
Central Metal ◽  
Target Compound ◽  
Compound I ◽  
Metal Phthalocyanines ◽  
Metal Atoms ◽  
Amino Salicylic Acid

Background: The phthalocyanines a series of compounds involves four iso-indole units linked by aza nitrogen atoms bonded with metal atoms that are normally located in the center a phthalocyanines ring. Some of the central metal-phthalocyanines can be excited by ultraviolet light and emit a fluorescence in far-red region. Objective: To synthesize a derivative of phthalocyanines namely 4,4',4' '-tri-(dodecenyl succinic anhydride)- 4' ' '-(5-amino salicylic acid) zinc phthalocyanine with a zinc central metal. Materials and Methods: The reaction of 4- nitro Phthalonitrile and 4- amino Phthalonitrile with ZnCl2 in the presence of dimethyl amino ethanol afforded 4,4',4' '-triamino-4' ' '-nitro zinc phthalocyanine. This product reacted with 5-amino salicylic acid to yield tetra-(5-amino salicylic acid) zinc phthalocyanine. A dodecenyl succinic anhydride was added on the amine group of benzoic rings to afford 4,4',4' '-tri-(dodecenyl succinic anhydride)-4' ' '-(5-amino salicylic acid) zinc phthalocyanine(I), the target compound. Results and Discussion: Compound I is successfully synthesized with a yield of 72% from tetra-(5-amino salicylic acid) zinc phthalocyanine with dodecenyl succinic anhydride. Conclusion: The newly synthesized molecule of 4,4',4' '-tri-(dodecenyl succinic anhydride)-4' ' '-(5-amino salicylic acid) zinc phthalocyanine (I), tetra-(5-amino salicylic acid) zinc phthalocyanine(E) and 4,4',4' '- triamino-4' ' '-nitro zinc phthalocyanine (S). The reaction of 4- nitro Phthalonitrile and 4- amino and the structure of compound I is confirmed and its formation was proven.

New π -Donor Molecules with a Pyrazino Group and their Conducting Salts

2001 ◽  
Vol 56 (3) ◽  
pp. 297-300 ◽  
Author(s):  
G. C. Papavassiliou ◽  
Yohji Misaki ◽  
Kazuko Takahashi ◽  
Jun-ichi Yamada ◽  
G. A. Mousdis ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Cation Radical ◽  
Charge Transfer Complexes ◽  
Edge Group

Abstract The preparation and characterization of some π-donors with a pyrazine-edge-group as well as with tetrathiapentalene-, thiophene-, and dihydrobenzoselenophene-spacer-groups are de­ scribed. Some of these donors give conducting charge transfer complexes with TCNQ and/or cation radical salts with I3-, BF4-and PF6-as counter anions.

Direct Resonance Raman Evidence for a Trans Influence on the Ferryl Fragment in Models of Compound I Intermediates of Heme Enzymes

1996 ◽  
Vol 118 (12) ◽  
pp. 2929-2935 ◽  
Author(s):  
Kazimierz Czarnecki ◽  
Shay Nimri ◽  
Zeev Gross ◽  
Leonard M. Proniewicz ◽  
James R. Kincaid
Keyword(s):  
Resonance Raman ◽  
Heme Enzymes ◽  
Compound I ◽  
Trans Influence ◽  
Direct Resonance
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