Laser ablation time-of-flight mass spectral studies of metal-substituted phthalocyanines

R. D. George, C. W. Chou, Peter Williams, Veronica Burrows, P. F. McMillan

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

We have obtained time-of-flight mass spectra for metal complexes of tetrakis(cumylphenoxy)-phthalocyanines, MPc(CP)4, by pulsed laser ablation from frozen benzene solutions. The Pc complexes themselves act as chromophores for the 355 and 580 nm excitation wavelengths used. Prior vapor pressure osmometry (VPO) and UV/visible absorption studies indicate an increasing degree of molecular association in solution in the order Pb < Cu < Ni < Pd < Hg. The mass spectra of all but the Hg-containing sample are dominated by the monomeric molecular ion (ML+) peak. The HgPc(CP)4 sample shows a pattern containing strong peaks due to HgL2 +, Hg2L3 +, Hg3L4 +, and other complex molecular ions. We suggest that this is consistent with formation of a cofacial Hg-linked polymer or oligomer in solution, as proposed in a previous VPO and UV/visible spectroscopy study.

Original languageEnglish (US)
Pages (from-to)5736-5738
Number of pages3
JournalLangmuir
Volume12
Issue number23
StatePublished - Nov 13 1996

Fingerprint

Laser ablation
laser ablation
Metals
Vapor pressure
molecular ions
vapor pressure
mass spectra
metals
Ions
Coordination Complexes
Chromophores
Metal complexes
Benzene
Pulsed lasers
oligomers
Oligomers
chromophores
pulsed lasers
Polymers
benzene

ASJC Scopus subject areas

  • Colloid and Surface Chemistry
  • Physical and Theoretical Chemistry

Cite this

George, R. D., Chou, C. W., Williams, P., Burrows, V., & McMillan, P. F. (1996). Laser ablation time-of-flight mass spectral studies of metal-substituted phthalocyanines. Langmuir, 12(23), 5736-5738.

Laser ablation time-of-flight mass spectral studies of metal-substituted phthalocyanines. / George, R. D.; Chou, C. W.; Williams, Peter; Burrows, Veronica; McMillan, P. F.

In: Langmuir, Vol. 12, No. 23, 13.11.1996, p. 5736-5738.

Research output: Contribution to journalArticle

George, RD, Chou, CW, Williams, P, Burrows, V & McMillan, PF 1996, 'Laser ablation time-of-flight mass spectral studies of metal-substituted phthalocyanines', Langmuir, vol. 12, no. 23, pp. 5736-5738.
George RD, Chou CW, Williams P, Burrows V, McMillan PF. Laser ablation time-of-flight mass spectral studies of metal-substituted phthalocyanines. Langmuir. 1996 Nov 13;12(23):5736-5738.
George, R. D. ; Chou, C. W. ; Williams, Peter ; Burrows, Veronica ; McMillan, P. F. / Laser ablation time-of-flight mass spectral studies of metal-substituted phthalocyanines. In: Langmuir. 1996 ; Vol. 12, No. 23. pp. 5736-5738.
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