prikaz prve stranice dokumenta Metalloporphyrins. The nature of ligand bonding and the mechanism of replacements
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Metalloporphyrins. The nature of ligand bonding and the mechanism of replacements
Croatica Chemica Acta, 69 (1996), 4; 1305-1328. urn:nbn:hr:163:315859
Ašperger, Smiljko; Cetina-Čižmek, Biserka

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Ašperger, S. i Cetina Čižmek, B. (1996). Metalloporphyrins. The nature of ligand bonding and the mechanism of replacements. Croatica Chemica Acta, 69. (4), 1305-1328. Preuzeto s https://urn.nsk.hr/urn:nbn:hr:163:315859

Ašperger, Smiljko i Biserka Cetina Čižmek. "Metalloporphyrins. The nature of ligand bonding and the mechanism of replacements." Croatica Chemica Acta, vol. 69, br. 4, 1996, str. 1305-1328. https://urn.nsk.hr/urn:nbn:hr:163:315859

Ašperger, Smiljko i Biserka Cetina Čižmek. "Metalloporphyrins. The nature of ligand bonding and the mechanism of replacements." Croatica Chemica Acta 69, br. 4 (1996): 1305-1328. https://urn.nsk.hr/urn:nbn:hr:163:315859

Ašperger, S. i Cetina Čižmek, B. (1996) 'Metalloporphyrins. The nature of ligand bonding and the mechanism of replacements', Croatica Chemica Acta, 69(4), str. 1305-1328. Preuzeto s: https://urn.nsk.hr/urn:nbn:hr:163:315859 (Datum pristupa: 18.04.2024.)

Ašperger S, Cetina Čižmek B. Metalloporphyrins. The nature of ligand bonding and the mechanism of replacements. Croatica Chemica Acta [Internet]. 1996. [pristupljeno 18.04.2024.];69(4):1305-1328. Dostupno na: https://urn.nsk.hr/urn:nbn:hr:163:315859

S. Ašperger i B. Cetina Čižmek, "Metalloporphyrins. The nature of ligand bonding and the mechanism of replacements", Croatica Chemica Acta, vol. 69, br. 4, str. 1305-1328, 1996. [Online]. Dostupno na: https://urn.nsk.hr/urn:nbn:hr:163:315859. [Citirano: 18.04.2024.]

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Podaci o radu
Naslov (engleski)Metalloporphyrins. The nature of ligand bonding and the mechanism of replacements
AutorSmiljko Ašperger
AutorBiserka Cetina-Čižmek
Autorova ustanovaSveučilište u Zagrebu
Farmaceutsko-biokemijski fakultet
(Zavod za fizikalnu kemiju)
Znanstveno / umjetničko
područje, polje i grana		PRIRODNE ZNANOSTI
Kemija
Fizikalna kemija
Sažetak (engleski)
The imidazole ring is an essential component of many biological systems (hemoglobin and myoglobin, nucleic acids, vitamin B^, cytochromes, metalloenzymes, etc.). The nature of the bond between imidazole-nitrogen and the metal is therefore of biological interest. Imidazole is an electron-donating ligand in both a and n sense, much more electron donating than the majority of nitrogen heterocycles. As ligands, most imidazoles are good a donors and moderate n donors. They can also function as n acceptors if the imidazole ring has one or more electron-withdrawing substituents. Our recent study of bonding modes of pyridine and imidazole type ligands in the transition state of a Conl(protoporphyrin IX) model complex enabled us to conclude that stabilization of the reaction transition state is more sensitive to the change in the strength of n bonding than in that of a bonding. This observation is important for some metallo-enzymatic reactions. Mechanisms of replacements in porphyrin and in corrin rings are discussed.
Jezikengleski
Vrsta publikacijeOstalo - Ostalo
Status objaveObjavljen
Vrsta recenzijeRecenziran
Verzija publikacijeObjavljena verzija rada (izdavačev PDF)
Naslov časopisaCroatica Chemica Acta
Brojčani podacivol. 69, br. 4, str. 1305-1328
p-ISSN0011-1643
e-ISSN1334-417X
URN:NBNurn:nbn:hr:163:315859
Datum objave publikacije1996
URL dokumentahttps://hrcak.srce.hr/135971
Vrsta resursaTekst
Prava pristupaOtvoreni pristup
Uvjeti korištenjaIkona licence Zaštićeno autorskim pravom.
Datum i vrijeme pohrane2020-04-29 14:35:08