Table 2.

The data obtained for a 0.2 mM solution of the organophosphorus ligands (1–3) in CH₃CN/0.1 mol dm⁻³ [NBu₄][PF₆] at 25 °C, at different scan rates and reference against FcH/FcH⁺ as the internal standard. The diffusion coefficient, D, E_pa (anodic peak potential) as well as i_pa (anodic peak current and, E_pc (cathodic peak potential) peak for each compound is shown.

Name	No.	D for ipa and ipc (cm2 s−1)	ʋ/mV s−1	Epa/mV	ipa/µA	Epc/mV
C6H5OPPh2	1	6.07 × 10-−5	100	1166	16.9	−1257
			200	1179	22.0	−1570
			300	1192	24.1	−1737
		2.8 × 10−11
			400	1205	24.6	−1765
			500	1216	26.2	−1778
C6H5SPPh2	2	5.01 × 10−5	100	1030	12.2	−1199
			200	1043	17.2	−1237
			300	1056	20.8	−1275
		1.52 × 10−7
			400	1069	23.9	−1313
			500	1083	26.2	−1350
C6H5NHPPh2	3	3.24 × 10−5	100	652	10.4	−1272
			200	657	14.6	−1304
			300	662	17.9	−1307
		1.3 × 10−11
			400	667	21.0	−1315
			500	674	23.2	−1323