Decamethylnickelocenium hydrogen-7,7,8,8-tetracyanoperfluoro-p-quinodimethandiide: isolation of the protonated weak base [HTCNQF4]–
Abstract
Unprecedently stable hydrogen-7,7,8,8-tetracyanoperfluoro-p-quinodimethandiide, [HTCNQF4]–, is isolated and crystallographically characterized.