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Synthesis, structure and chemistry of low-boron containing molybdaborane: Arachno-[Cp∗Mo(CO)2B3H8]
Rongala Ramalakshmi, Moulika Bhattacharyya, Chokkapu Eswara Rao,
Published in Elsevier
2015
Volume: 792
   
Pages: 31 - 36
Abstract
Abstract Room temperature photolysis of [Cp∗Mo(CO)3Me], 1 with excess of [BH3·THF] led to the isolation of hydrogen-rich arachno-[Cp∗Mo(CO)2B3H8], 2 in good yield. The geometry of arachno-2 consists of a butterfly core similar to that of 7 skeletal electron pairs tetraborane(10). Further, the metal fragment addition reaction of arachno-2 with [Fe2(CO)9] yielded a nido-[Cp∗Mo(CO)2B3H6Fe(CO)3], 3 that plays a pivotal role in bringing a change in the geometry from arachno-2 to nido-3. The reaction of arachno-2 with [Ru3(CO)12], however, yielded known metal carbonyl compound [Cp∗Mo(CO)3]2, 4. All the new compounds have been characterized in solution by mass spectrometry, IR, 1H, 11B, 13C NMR spectroscopy and the solid state X-ray structures of 2 and 3 were unequivocally established by X-ray diffraction analysis. Additionally, we have studied the bonding nature of compounds 2 and 3 with the help of density functional theory (DFT) calculations. © 2014 Elsevier B.V.
About the journal
JournalData powered by TypesetJournal of Organometallic Chemistry
PublisherData powered by TypesetElsevier
ISSN0022328X
Open AccessNo
Concepts (23)
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    Addition reactions
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    Boron
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    Carbonyl compounds
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    Carbonylation
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    Chemical bonds
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    Density functional theory
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    Mass spectrometry
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    Molybdenum
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    Nuclear magnetic resonance spectroscopy
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    Photolysis
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    Rubidium compounds
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    Ruthenium
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    Synthesis (chemical)
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    X ray diffraction analysis
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    Boron-containing
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    BUTTERFLY
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    Cluster compounds
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    METAL CARBONYL COMPOUNDS
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    METAL FRAGMENTS
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    Metallaborane
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    Room temperature
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    X-ray structure
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    Iron compounds