A. Graham Lappin

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Biography

Professor Lappin received his B.Sc. in 1972 and his Ph.D. in 1975, both from the University of Glasgow. He did postdoctoral research at Purdue University from 1975 to 1977 and was an S.R.C. fellow at the University of Leeds from 1977 to 1978. He was a lecturer at the University of Glasgow before joining the faculty in 1982. Professor Lappin is currently Chair of the department.

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Research Interests

Professor Lappin has worked in the area of mechanistic inorganic chemistry for the past twenty-five years. His interests cover both substitution reactions and redox processes of transition metal ion complexes and range from reactions of metalloproteins in biological systems to the corrosion chemistry associated with chemical reactors. Studies of cooperation between multiple reaction centers in chemical reactions have been a long standing area of research, particularly those involving multiple electron transfer or coupled electron and ion transfer.

Over the last decade the Lappin group has investigated phemomena associated with chiral induction in electron transfer and atom transfer reactions involving metal ion complexes and has provided much of the insight required for the interpretation of this effect. The inductions tend to be small but provide a very sensitive mechanistic probe. They occur quite generally in both outer-sphere and inner-sphere reactions.

Work in this area encompasses developments in molecular and chiral recognition and the characterization of weak interactions between metal complexes. These studies have led to the design of novel chiral ligands and investigations of new magnetic materials based on chiral paramagnetic metal complexes.

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Recent Papers

“Excited state vs. photoinduced charge separation in bundles of a polyamide containing pendent Al(III) phthalocyaninetetrasulfonate groups. Potential applications to photocatalysis,” G. T. Ruiz, G. Ferraudi, A. G. Lappin, J. Photochem. Photobiol. A, 2009, 206, 1-9.
“The Cu(II) tetraazaannulene-catalyzed reduction of S(IV) species. A pulse radiolysis study of the associated reaction mechanism,” Guillermo Ferraudi, Guillermina Estiu, A. Graham Lappin, Manuel Villagran, Juan P. Muena, Juan Costamagna, Jose Zagal, Helvetica Chimica Acta, 2009, 92, 339-356.
“Oligomerization of the Cu(II) and Ni(II) tetraazaannulene complexes. A pulse radiolysis study of the associated reaction mechanism,” M. Villagran , J. P. Muena , J. Costamagna , J. Zagal , A. G. Lappin, G. Ferraudi, Inorganica Chimica Acta, 2009, 362, 2177-2182.
"Origins of Shape Selectivity in Outer-sphere Electron Transfer Reactions," T. Mitani, N. Honma, A. Tatehata, and A. G. Lappin, Inorg. Chim. Acta 331, 39-47 (2002).
"The Chemistry of Ruthenium Complexes of 1,2-Dicyanoethylene Dithiolate (mnt2-). Synthesis and Characterization of [RuIV/III(mnt)3]2-/3- and the Derivatives trans-[RuIII(mnt)2(PPh3)2]-, trans-[RuIII(mnt)2(py)2]- and trans-[RuIV(mnt)2(Br)2]2-," R. Maiti, M. Shang, and A. G. Lappin, J. Chem. Soc., Dalton Trans. 244-251 (2002).

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Contact Information

  • Professor
    Director of Undergraduate Studies
  • Office: 241/243 NSH
  • Phone: 574.631.7820
  • Contact by Email

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