. Author manuscript; available in PMC: 2013 Jun 18.

Published in final edited form as: Inorg Chem. 2012 Jun 5;51(12):6928–6942. doi: 10.1021/ic3007926

Table 1.

Half-wave or peak potentials (V vs SCE) for the different forms of (NO₂)_xTTCorrH₃ in solvents containing 0.1 M TBAP.

Solvent	cpd	ox			red

		2nd	1st		1st	2nd	3rd
pyridine	TTCorrH₃	0.56^a	0.09		-1.33^a	-1.88
	3-NO₂TTCorrH₃	0.70^a	0.25		-0.87^a	-1.34	-1.71
	3,17-(NO₂)₂TTCorrH₃	0.83^a	0.41		-0.75^a	-1.05	-1.40

CH₂Cl₂	TTCorrH₃		0.33	-0.09^b	-1.40^a
	3-NO₂TTCorrH₃		0.50^a	0.16^b	-0.84^a	-1.42^a	-1.60^a
	3,17-(NO₂)₂TTCorrH₃		--	0.33^b	-0.62^a	-1.06	-1.39

PhCN	TTCorrH₃		0.34	-0.08^b	-1.40^a	-1.90
	3-NO₂TTCorrH₃		--	0.14^b	-0.84^a	-1.39	-1.76^a
	3,17-(NO₂)₂TTCorrH₃		0.94	0.35^b	-0.62^a	-1.08	-1.38

Peak potential at scan rate of 0.1 V/s;

This redox couple can only be seen on the second positive potential sweep after scanning through the first reduction.