Ultra-Weak Metal−Metal Bonding: Is There a Beryllium-Beryllium Triple Bond? |
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| Authors: | Shahnaz S Rohman Chayanika Kashyap Sabnam S Ullah Dr Ankur K Guha Lakhya J Mazumder Dr Pankaz K Sharma |
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| Institution: | Department of Chemistry, Cotton University, Panbazar, Guwahati, Assam, INDIA-, 781001 |
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| Abstract: | Metal-metal triple bonds featuring s-block element have not been reported until now. Only Be−Be double bonds between have been predicted theoretically based on the intuitive electron donation from four s1 type electron-donating ligands. Herein, we theoretically predicted a novel species featuring a Be−Be triple bond in the Li6Be2 molecule. The molecule was found to be thermodynamically stable. The presence of the triple bond was confirmed by adaptive natural density partitioning (AdNDP), electron localization function (ELF), and atoms in molecules (AIM) analyses. Moreover, the mechanical strength of the Be−Be triple bond was analyzed by using compliance matrix, pointing towards its ultra-weak nature. |
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| Keywords: | ab initio calculations multicenter bonding multiple bonds s-block element s1 type donor |
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