A5011908510- Politics and Conflicts in Afghanistan, Pakistan, and Middle East
- South Asian Studies and Conflicts
- Asian Geopolitics and Ethnography
- Porphyrin and Phthalocyanine Chemistry
- Metal-Catalyzed Oxygenation Mechanisms
- Indian History and Philosophy
- Indian Economic and Social Development
- Magnetism in coordination complexes
- Bangladesh Politics, Society, and Development
- Health and Conflict Studies
- Military History and Strategy
- Southeast Asian Sociopolitical Studies
- Peacebuilding and International Security
- International Relations and Foreign Policy
- Belt and Road Initiative
- Nuclear Issues and Defense
- Global Peace and Security Dynamics
- Surface Chemistry and Catalysis
- Socioeconomic Development in MENA
- African cultural and philosophical studies
- Asian Studies and History
- COVID-19 impact on air quality
- South Asian Cinema and Culture
- Photosynthetic Processes and Mechanisms
- Social and Economic Development in India
Indiana University Bloomington
2010-2023
UiT The Arctic University of Norway
2016-2019
Indian Institute of Technology Indore
2018
Indiana University
2016
Nanyang Technological University
2010
Michigan State University
1985-1986
ConspectusNoninnocent ligands do not allow an unambiguous definition of the oxidation state a coordinated atom. When coordinated, also cannot be adequately represented by classic Lewis structure. A noninnocent system thus harbors oxidizing (holes) or reducing equivalents (electrons) that are delocalized over both ligand and To certain degree, is true all complexes, but phenomenon arguably most conspicuous in complexes involving with extended π-systems. The electronic structures such systems...
A reinvestigation of cobalt–corrole–triphenylphosphine complexes has yielded an unexpectedly subtle picture their electronic structures. UV–vis absorption spectroscopy, skeletal bond length alternations observed in X-ray structures, and broken-symmetry DFT (B3LYP) calculations suggest partial CoII–corrole•2– character for these complexes. The same probes applied to the analogous rhodium corroles evince no evidence a noninnocent corrole. spectroscopic studies showed that Co K rising edge...
Abstract Two new series of iron meso ‐tris( para ‐X‐phenyl)corrole (T p XPC) complexes, Fe[T XPC]Ph and XPC]Tol, in which X=CF 3 , H, Me, OMe, Tol= ‐methylphenyl ( ‐tolyl), have been synthesized, allowing a multitechnique electronic–structural comparison with the corresponding FeCl, FeNO, Fe 2 μ ‐O) T XPC derivatives. Optical spectroscopy revealed that Soret maxima FePh FeTol are insensitive to phenyl substituent, consistent presumed innocence corrole ligand these compounds. Accordingly, we...
Two sets of complexes Co-triarylcorrole-bispyridine complexes, Co[TpXPC](py)2 and Co[Br8TpXPC](py)2 have been synthesized, where TpXPC refers to a meso-tris(para-X-phenyl)corrole ligand with X = CF3, H, Me, OMe Br8TpXPC the corresponding β-octabrominated ligand. The axial pyridines in these were found be labile and, dilute solutions dichloromethane, dissociate almost completely five-coordinate monopyridine complexes. Upon addition small quantity pyridine, revert back six-coordinate forms....
Presented herein is a detailed multitechnique investigation of ligand noninnocence in S = 3/2 manganese corrole derivatives at the formal MnIV oxidation state. The Soret maxima Mn[T pXPC]Cl (T pXPC meso-tris( p-X-phenyl)corrole, where X CF3, H, Me, and OMe) were found to red-shift over range 37 nm with increasing electron-donating character X. For pXPC]Ph, contrast, complex envelopes be largely independent These observations suggested noninnocent corrole•2--like for MnCl complexes an...
Abstract For well over 20 years, μ‐oxo‐diiron corroles, first reported by Vogel and co‐workers in the form of μ‐oxo‐bis[(octaethylcorrolato)iron] (Mössbauer δ 0.02 mm s −1 , Δ E Q 2.35 ), have been thought as comprising a pair antiferromagnetically coupled low‐spin Fe IV centers. The remarkable stability these complexes, which can be handled at room temperature crystallographically analyzed, present sharp contrast to fleeting nature enzymatic, iron(IV)‐oxo intermediates. An array...
Sri Lanka's ethnoreligious divisions are bound to continue as long the likes of Rajapaksa dominate island's political scene.
In early September, India recorded the second largest number of COVID-19 cases in world, surpassed only by United States. The growth since March 24, despite Prime Min...
Eating Grass: The Making of the Pakistani Bomb, by Feroz Hassan Khan. Stanford University Press, 2012. 544 pages, $29.95. Managing India's Nuclear Forces, Verghese Koithara. Brookings Institution 304 $59.95.
Should the United States simply relegate Afghanistan, and South Asia in general, to outer fringes of its concerns once bin Laden his acolytes Al Qaeda terror network have been either prosecuted or destroyed, Afghanistan could again become a fertile arena for genesis other militant Islamist organizations intent on wreaking havoc Western world.