Iron(II) Complexes with Boron Cluster Anion [B₁₀Cl₁₀]^2–: Intermolecular Interactions according to³⁵Cl NQR Spectroscopy and X‐ray Diffraction

Abstract

Abstract. Secondary interactions, in which decachloro-closo-decaborate anions are involved were studied in solvates [Fe(phen) [B 10 Cl 10 ] 3 · 2CH 3 CN·H 2 O (4). Structures 1-4 were determined by X-ray diffraction analysis, and complexes 1-3 were studied using 35 Cl NQR spec-

Synthesis of Perchlorinated Sulfonium Derivatives of closo-Decaborate Anion [2-B10Cl9SR2]− (R = i-C3H7, n-C3H7, n-C4H9, n-C8H17, n-C12H25, n-C18H37, CH2Ph, and cyclo-S(CH2)4)

“…We have previously undertaken a systematic study of a capability of Cl atoms in perchlorinated [B 10 Cl 10 ] 2– anions to form intermolecular (noncovalent) bonds with cations and ligands using 35 Cl NQR and X-ray diffraction. ,− The current concept of noncovalent interaction, involving the atom (chlorine) bound by a covalent bond to another atom (boron), assumes that an area of depleted electron density (the σ-hole) is formed on the elongation of the covalent bond . This area attracts electron-donating sites (nucleophiles) hence forming a noncovalent bond.…”