The Na...B Bond in NaBH3-: A Different Type of Bond

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Publikace nespadá pod Pedagogickou fakultu, ale pod Přírodovědeckou fakultu. Oficiální stránka publikace je na webu muni.cz.
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FOROUTANNEJAD Cina

Rok publikování 2020
Druh Článek v odborném periodiku
Časopis / Zdroj Angewandte Chemie International Edition
Fakulta / Pracoviště MU

Přírodovědecká fakulta

Citace
www https://doi.org/10.1002/anie.202010024
Doi http://dx.doi.org/10.1002/anie.202010024
Klíčová slova bond analysis; bond analysis; covalent bonds; electrostatic interactions; sodium; quantum chemistry
Popis A newly introduced Na-B bond in NaBH(3)(-)has been a challenge for the chemical bonding community. Here, a series of MBH3-(M=Li, Na, K) species and NaB(CN)(3)(-)are studied within the context of quantum chemical topology approaches. The analyses suggest that M-B interaction cannot be classified as an ordinary covalent, dative, or even simple ionic interaction. The interactions are controlled by coulombic forces between the metals and the substituents on boron, for example, H or CN, more than the direct M-B interaction. On the other hand, while the characteristics of the (3, -1) critical points of the bonds are comparable to weak hydrogen bonds, not covalent bonds, the metal and boron share a substantial sum of electrons. To the best of the author's knowledge, the characteristics of these bonds are unprecedented among known molecules. Considering all paradoxical properties of these bonds, they are herein described as ionic-enforced covalent bonds.
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