The Crystal Structure of a RAS (N-CH3-2-NH2-5-Cl-Py)(TCNQ)(CH3CN) Solvate

摘要

The structure of the radical anion salt (RAS) of 7,7,8,8-tetracyanedimethane (TCNQ) with a cation based on 2-amin-5-chloro-pyridine (2-NH2-5-Cl-Py, Am), that is, (N-CH3-2-NH2-5-Cl-Py) (TCNQ) (CH3CN), (I) is presented. Unlike most TCNQ RASs, which contain flat TCNQ particle stacks, RAS I contains practically isolated (TCNQ) pi-dimers with unusually short distances between the planes in the dimers: 3.24 angstrom. In the RAS I IR spectra special features are observed that correspond to the vibronic interactions of molecular vibrations.