Electron spin resonance spectra of chromium, iron, nickel, copper, and metal-free phthalocyanins reduced by sodium in tetrahydrofuran and in hexamethylphosphoramide

Chromium, iron, nickel, copper, and metal-free phthalocyanins have been reduced by sodium in tetrahydrofuran and in hexamethylphosphoramide. In each case, se...