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Jemmis, Eluvathingal D.
- Unexpected Mechanism for Formal [2 + 2] Cycloadditions of Metallacyclocumulenes
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PDF Views:83
Authors
Affiliations
1 Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560 012, IN
1 Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560 012, IN
Source
Current Science, Vol 106, No 9 (2014), Pagination: 1249-1254Abstract
The formation of radialene complex 6M proceeds through a three-membered metallacyclopropene com-plex 7M, contrary to the prevailing notion of simple dimerization of metallacyclocumulene 1M. The 1M-7M equilibrium, which is predominantly governed by the size-dependent ligand binding of the metal atoms, plays a decisive role in the chemistry of Cp2M-ligand complexes. This size dependency is further fine-tuned by the substituents on the substrates and helps in exploiting these classes of metallacycles to generate new chemistry.Keywords
Cumulene, Metallacycles, Radialene Complex, Transition Metals.Full Text
- Controversy Continues on the Position of Elements in the Periodic Table
Abstract Views :316 |
PDF Views:83
Authors
Affiliations
1 Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bengaluru 560 012, IN
1 Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bengaluru 560 012, IN
Source
Current Science, Vol 114, No 12 (2018), Pagination: 2428-2429Abstract
The International Union of Pure and Applied Chemistry (IUPAC) is all set to celebrate 2019 as the year of the Periodic Table of elements, the single most important organizational tool in chemistry. While the central role of the Table in chemistry is undisputed, the debate on placement of elements in its various blocks has not settled even after 150 years. Though there is general agreement about the four blocks of the Table, there are many points to debate. The first element itself had options. The logic of keeping hydrogen simultaneously above Li and F is easy to understand. So was the debate to keep He above Be, and, also above Ne. IUPAC adopted to keep H above Li and He above Ne. The philosophical implications of the evolutionary changes in the Periodic Table have been discussed in detail by many, Eric Scerri prime among them.Full Text
References
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- C2 Revisited: Experiment and Theory
Abstract Views :240 |
PDF Views:70
Authors
Affiliations
1 Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bengaluru 560 012, IN
1 Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bengaluru 560 012, IN
Source
Current Science, Vol 119, No 4 (2020), Pagination: 591-592Abstract
No Abstract.Full Text
- Borophenes to Borophites: Exploration Through Electron Counting
Abstract Views :186 |
PDF Views:73
Authors
Affiliations
1 Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bengaluru 560 012, IN
1 Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bengaluru 560 012, IN
Source
Current Science, Vol 122, No 2 (2022), Pagination: 161-166Abstract
Isoelectronic comparison to graphene and magnesium boride (MgB2) explains the inevitable holes in borophenes. Similar qualitative analysis of stacking borophene layers towards an equivalent of graphite brings up several possibilities, which are presented here. Electron counting indicates that, in addition to the van der Waals interactions commonly seen in graphite, interlayer 2c–2e and multi-centre bonds, and hole density play an important role in the structure of borophites. The complexity that arises here may surpass that of 3D boron allotropesKeywords
Borophenes, Borophites, Bond Density, Electron Count, Hole Density.Full Text
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