Publications

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1994
FIGUEIREDO, P, Lima JC, Santos H, WIGAND MC, Brouillard R, Macanita AL, Pina F.  1994.  PHOTOCHROMISM OF THE SYNTHETIC 4',7-DIHYDROXYFLAVYLIUM CHLORIDE. Journal of the American Chemical Society. 116:1249-1254., Number 4 Abstract
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1992
Pina, F, Parola AJ, Bencini A, Micheloni M, Manfrin MF, Moggi L.  1992.  CHARGE EFFECTS ON THE PHOTOCHEMISTRY OF THE CO(EDTA) .1. SYSTEM IN THE PRESENCE OF POLYAMMONIUM MACROCYCLIC RECEPTORS, 1992. Inorganica Chimica Acta. 195:139-143. Abstract

The effects of polyammonium macrocycles on the spectroscopic and photochemical properties of the Co(EDTA)- . I- ion-pair have been investigated. The addition of a macrocycle to aqueous solutions containing Co(EDTA)- and I- causes an increase of the absorbance in the region of the ion-pair charge-transfer band, as well as an increase of the quantum yield for the intramolecular photooxidation reduction of the ion-pair. Both these effects are mainly, if not only, due to an increase of the association constant between Co(EDTA)- and I-, caused by the positive charge of the macrocycle bound to the complex. On the contrary no change was observed on the intrinsic photoreactivity of the excited ion-pair. This last result is discussed in comparison with the effects already observed on the ligand photodissociation of MC excited states of Co(III) cyanide complexes.

1989
Pina, F, Moggi L, Manfrin MF, Balzani V, Hosseini MW, Lehn JM.  1989.  PHOTOCHEMISTRY OF SUPRAMOLECULAR SYSTEMS - SIZE AND CHARGE EFFECTS IN THE PHOTOAQUATION OF ADDUCTS OF THE HEXACYANOCOBALTATE(III) ANION WITH POLYAMMONIUM MACROCYCLIC RECEPTORS. Gazzetta Chimica Italiana. 119:65-67., Number 1 Abstract
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1986
Pina, F, Maestri M, Ballardini R, Mulazzani QG, Dangelantonio M, Balzani V.  1986.  {FLASH-PHOTOLYSIS AND PULSE-RADIOLYSIS OF THE CO(SEP)3+-X- (SEP= SEPULCHRATE. Inorganic Chemistry. 25:4249-4252., Number 23 Abstract
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