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(52) Steene, E.; Wondimagegn, T.; Ghosh, A. "Electrochemical and Electronic Absorption Spectroscopic Studies of Substituent Effects in Iron(IV) and Manganese(IV) Corroles. Do the Compounds Feature High-Valent Metal Centers or Noninnocent Corrole Ligands? Implications for Peroxidase Compound I and II," The Journal of Physical Chemistry B2001, 105, 11406-11413.
(53) Steene, E.; Wondimagegn, T.; Ghosh, A. "Resonance Raman Spectroscopy and Density Functional Theoretical Studies of Manganese Corroles. A Parallelism Between High-Valent Metallocorroles and Metalloporphyrins, Relevant to Horseradish Peroxidase and Chloroperoxidase Compound I and II Intermediates," Journal of Inorganic Biochemistry (ICBIC10 Special Issue) 2002, 88,113-118.
(54) Ghosh, A. "Theoretical Perspectives
on Bioinorganic Chemistry. Part I. Hemes, B12, and
F430 (editorial)," Current Opinion in Chemical Biology
2002, 5, 713-714.
(55) Ghosh, A.; Wondimagegn, T.; Ryeng, H. "Deconstructing
F430: quantum chemical perspectives of biological
methanogenesis," Current Opinion in Chemical Biology 2002,
5, 744-750.
(56) Ghosh, A. "Theoretical Perspectives on Bioinorganic Chemistry. Part II. Non-heme Metalloenzymes (editorial)," Current Opinion in Chemical Biology 2002, 6, 225-226.
Fig. 1. Two cartoons illustrating the
nature of the relationship between chemistry and biology. (a) Cartoon
illustrating the application of Ridley's metaphor to the chemistry-biology
interface. The dark green-and-black background, symbolizing a dark and
mysterious forest, represents biology. The bright ellipse represents
the small part of biology - a clearing in this forest - which has been
explored by rigorous chemical techniques, including those of quantum
chemistry. (b) Cartoon representation of biology as a tiny part - a small
island in the ocean - of chemistry. I first saw a similar cartoon in a
lecture by Prof K Barry Sharpless many years ago where, as might be expected,
it provoked considerable laughter in the audience. Fig. 1b is presented
with permission from Prof. K Barry Sharpless.
(57) Dey, A.;
Ghosh, A. " "True" Iron(V) and Iron(VI) Porphyrins: A First Theoretical
Exploration," Journal of the American
Chemical Society,2002, 124, 3206-3207.
(58) Ryeng, H.; Ghosh, A. "Do
Nonplanar Distortions of Porphyrins Bring About Strongly Red-Shifted
Electronic Spectra? Controversy, Consensus, New Developments,
and Relevance to Chelatases," Journal of the American Chemical Society
2002, 124,8099-8103.
(59) Halvorsen, I.; Wondimagegn, T.; Ghosh, A. "Electronic Absorption, Resonance
Raman, and Electrochemical Studies of Planar and Saddled Copper(III)
Meso-Triarylcorroles. Uniquely Substituent-Sensitive Soret
Bands Specific to High-Valent Transition Metal Corroles," Journal of the American Chemical Society 2002,
124,8104-8116.
(60) Tangen, E.; Ghosh, A. "Electronic Structure of High-Valent Transition Metal Corrolazine Complexes. The Young and Innocent?" Journal of the American Chemical Society 2002, 124,8117-8121.
Right: Corrole researchers meet in in Kyoto
for the Second International Conference on Porphyrins and Phthalocyanines
(ICPP2). From left to right: Abhik Ghosh, Takashi Hayashi,
Zeev Gross, Jean-Michel Barbe, David Goldberg, and Karl Kadish.
Left: The SOMO of pseudo-Jahn-Teller-distorted
Zn porphine p-cation radical. Note
that the spin density profile corresponds to the C4h rather
than the D4h point group.
(61) Vangberg, T.; Lie, R.; Ghosh, A. "Symmetry-Breaking Phenomena in Metalloporphyrin p-Cation Radicals," Journal of the American Chemical Society 2002, 124,8122-8130.
(62) Ghosh, A.; Steene, E. "High-Valent Transition Metal Centers Versus Noninnocent Ligands in Metallocorroles: Insights from Electrochemistry and Implications for High-Valent Heme Protein Intermediates," Journal of Inorganic Biochemistry 2002, 91,423-436.
(63) Ghosh, A. "Computational Bioinorganic
Chemistry. Part III. The Tools of the Trade: From High-Level
Ab Initio Calculations to Structural Bioinformatics (editorial),"
Current Opinion in Chemical Biology 2003, 7, 110-112.
(64) Ghosh, A.; Taylor P. R. "High-Level
Ab Initio Calculations on the Spin State Energetics of Biologically
Relevant Transition Metal Complexes: A First Progress Report,"
Current Opinion in Chemical Biology 2003, 91,
113-124.
(68) Conradie, J.; Ghosh, A. "Do
the One-Electron Oxidized Derivatives of Some Six-Coordinate Low-Spin
Iron(III) Porphyrins Feature Strong Metal-Ligand Ferromagnetic Coupling?"
Journal of Physical Chemistry B, 2003, 107, 6486-6490.
(69) Steene, E.; Dey, A.; Ghosh, A. "b-Octafluorocorroles," Journal of the American
Chemical Society, 2003, 125, 16300-16309.
Right:
After Erik's Ph. D. defense, March, 2003. Far right: February,
2003: Celebrating with a steak dinner at a restaurant (The Shore
Cliff - a nice place to stop by, if you are driving along the Central
Coast!) in Shell Beach, California, after the Gordon Research Conference
on Metals in Biology in Ventura, where we first presented this work!
(70) Conradie, J.; Swarts, J. C.; Ghosh,
A. "Models of High-Valent Heme Protein Intermediates: A Quantum
Chemical Study of Iron(IV) Porphyrins with Two Univalent Axial p-Bonding Ligands," The Journal of Physical Chemistry B, 2004, 108, 452-456.
Right: Jeanet,
March 1993: Grøtsfjord, Kvaløya, Tromsø
(71) Ghosh, A.; Tangen, E.; Gonzalez, E.;
Que, L., Jr. "Models of High-Valent Intermediates of Nonheme Diiron Alkane
Monooxygenases. Electronic Structure of a Bis(m-oxo)diron(IV) Complex with Locally Low-Spin Metal
Centers," Angewandte Chemie International Edition, 2004,
43, 834-838; Angewandte Chemie
2004, 116, 852-856.
(72) Ghosh, A. "A Perspective of Pyrrole-Aldehyde
Condensations as Versatile Self-Assembly Processes (Minireview)," Angewandte Chemie, accepted for publication.
(73) van Oort, B.; Tangen, E.; Ghosh, A. "Electronic Structure of Transition
Metal Isocorrole Complexes: A First Quantum Chemical Study," European
Journal of Inorganic Chemistry, accepted for publication.
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