Electron spin resonance of Pt(III) in anticancer platinum pyrimidine green

Toshimasa Uemura; Takenori Tomohiro; Kikuko Hayamizu; Yohmei Okuno

doi:10.1016/0009-2614(87)85136-9

Electron spin resonance of Pt(III) in anticancer platinum pyrimidine green

Toshimasa Uemura^*, Takenori Tomohiro, Kikuko Hayamizu, Yohmei Okuno

^*Corresponding author for this work

Biorecognition Chemistry

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Abstract

The electron spin resonance (ESR) of Pt(III) in platinum pyrimidine green is investigated. The spectrum shows a typical powder pattern of uniaxial symmetry and g_∥ and g_⊥ are determined to be 1.991 and 2.413, respectively. It is concluded that the spectrum derives essentially from the 5d_z²-like hole state of Pt(III) (5d⁷). The hyperfine structure of the spectrum suggests that the unpaired spin is not localized on one platinum center but has a wide orbital extended over four platinum atoms. The molecular structure is expected to resemble that of α-pyridone blue.

Original language	English
Pages (from-to)	423-425
Number of pages	3
Journal	Chemical Physics Letters
Volume	142
Issue number	5
DOIs	https://doi.org/10.1016/0009-2614(87)85136-9
State	Published - 1987/12/18

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General Physics and Astronomy
Physical and Theoretical Chemistry

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title = "Electron spin resonance of Pt(III) in anticancer platinum pyrimidine green",

abstract = "The electron spin resonance (ESR) of Pt(III) in platinum pyrimidine green is investigated. The spectrum shows a typical powder pattern of uniaxial symmetry and g∥ and g⊥ are determined to be 1.991 and 2.413, respectively. It is concluded that the spectrum derives essentially from the 5dz2-like hole state of Pt(III) (5d7). The hyperfine structure of the spectrum suggests that the unpaired spin is not localized on one platinum center but has a wide orbital extended over four platinum atoms. The molecular structure is expected to resemble that of α-pyridone blue.",

author = "Toshimasa Uemura and Takenori Tomohiro and Kikuko Hayamizu and Yohmei Okuno",

year = "1987",

month = dec,

day = "18",

doi = "10.1016/0009-2614(87)85136-9",

language = "英語",

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journal = "Chemical Physics Letters",

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T1 - Electron spin resonance of Pt(III) in anticancer platinum pyrimidine green

AU - Uemura, Toshimasa

AU - Tomohiro, Takenori

AU - Hayamizu, Kikuko

AU - Okuno, Yohmei

PY - 1987/12/18

Y1 - 1987/12/18

N2 - The electron spin resonance (ESR) of Pt(III) in platinum pyrimidine green is investigated. The spectrum shows a typical powder pattern of uniaxial symmetry and g∥ and g⊥ are determined to be 1.991 and 2.413, respectively. It is concluded that the spectrum derives essentially from the 5dz2-like hole state of Pt(III) (5d7). The hyperfine structure of the spectrum suggests that the unpaired spin is not localized on one platinum center but has a wide orbital extended over four platinum atoms. The molecular structure is expected to resemble that of α-pyridone blue.

AB - The electron spin resonance (ESR) of Pt(III) in platinum pyrimidine green is investigated. The spectrum shows a typical powder pattern of uniaxial symmetry and g∥ and g⊥ are determined to be 1.991 and 2.413, respectively. It is concluded that the spectrum derives essentially from the 5dz2-like hole state of Pt(III) (5d7). The hyperfine structure of the spectrum suggests that the unpaired spin is not localized on one platinum center but has a wide orbital extended over four platinum atoms. The molecular structure is expected to resemble that of α-pyridone blue.

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U2 - 10.1016/0009-2614(87)85136-9

DO - 10.1016/0009-2614(87)85136-9

M3 - 学術論文

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SN - 0009-2614

VL - 142

SP - 423

EP - 425

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 5

ER -

Electron spin resonance of Pt(III) in anticancer platinum pyrimidine green

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