Abstract
Treatment of TeCl 4 with either K[{N(C 6H 3Pr i 2-2,6)C(H)} 2CPh] [≡K( L)] ( 1) in thf/Et 2O or [H 2( L)]Cl ( 2) in Et 2O furnished [Cl 4 Te - Cl ⋯ H ( L + ) H ⋯ OEt 2]·0.5(Et 2O) ( 3), whilst 2TeCl 4 with a mixture of single equivalent portions of 2,6-Pr i 2C 6H 3NH 2 and H( L) produced [Cl 4 Te - ( C 6 H 2 Pr i 2 - 3 , 5 - N + H 3 - 4 ) ( thf ) 2 ] · 0.5 ( thf ) ] ( 4). The X-ray structures of each of crystalline 3 and 4 show that the Te atom is at the centre of an only slightly distorted square pyramid, with a Cl atom of 3 or a C of 4 in the axial position. The N1 and N2 atoms of the π-delocalised β-dialdiminium moiety of 3 have H-bond contacts, involving short N1–H ⋯ OEt 2 and N2–H ⋯ Cl5 distances. The two longer of the four Te–Cl bonds of 4 are close to the N atom of the neighbouring molecule; whilst two of the H atoms of each N + H 3 fragment are H-bonded to the O atoms of the two thf ligands, the third being close to two Cl atoms of an adjacent molecule, thus forming H-bonded chains of molecules.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call