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Titolo:
FRACTAL SURFACE OF AMORPHOUS PLATINUM PYRIMIDINE COMPLEXES IN SOLID-STATE AS REVEALED BY ANOMALOUS SMALL-ANGLE SCATTERING
Autore:
SERIMAA R; LAITALAINEN T; REGAN MJ; BIENENSTOCK A;
Indirizzi:
UNIV HELSINKI,DEPT PHYS,POB 9 SF-00014 HELSINKI FINLAND UNIV HELSINKI,DEPT CHEM SF-00014 HELSINKI FINLAND STANFORD UNIV,SYNCHROTRON RADIAT LAB STANFORD CA 94305
Titolo Testata:
Journal de physique. IV
fascicolo: C8, volume: 3, anno: 1993,
pagine: 361 - 364
SICI:
1155-4339(1993)3:C8<361:FSOAPP>2.0.ZU;2-2
Fonte:
ISI
Lingua:
ENG
Soggetto:
GREENS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
11
Recensione:
Indirizzi per estratti:
Citazione:
R. Serimaa et al., "FRACTAL SURFACE OF AMORPHOUS PLATINUM PYRIMIDINE COMPLEXES IN SOLID-STATE AS REVEALED BY ANOMALOUS SMALL-ANGLE SCATTERING", Journal de physique. IV, 3(C8), 1993, pp. 361-364

Abstract

The amorphous platinum greens, which were synthesized from Pt(NH3)2(H2O)2(NO3)2 or from Pt(NH3)2(H2O)2(SO4) and uridine, 5-bromouridine andftorafur, were studied in the solid state by anomalous small angle x-ray scattering. The intensity curves exhibit a power-law dependence, which is likely to originate from large aggregates that are quite compact yet have rough surfaces. The surface fractal dimension varied between 2.2-2.7. The radius of gyration of the particles in the aqueous reaction mixture before precipitation was only about 5 angstrom. Thus it was concluded that the aggregates barely nucleate during the reaction and grow during the precipitation with acetone.

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Documento generato il 02/12/20 alle ore 14:42:14