Table 1. Speciation of Complexes 1–5 Obtained by Treatment of 1 by n equiv of M(hmds) (M = Li, Na, K) under Various Conditions.

entry	M (n)	t (h)	T (°C)	solventa	light	1	2C6D5	3′	3″	4C6D5,D	5–
1	Li (2)	72	20	C6D6	no	97	0	0	0	0	2
2	Na (2)	72	20	C6D6	no	0	0	40	7	5	4
3	K (2)	72	20	C6D6	no	5	0	10	20	4	7
4	Li (2)	72	20	C6D6	yes	5	0	0	0	40b	0
5	Na (2)	72	20	C6D6	yes	0	0	0	0	48b	2
6	K (2)	72	20	C6D6	yes	5	0	0	0	45b	5
7	Li (10)	22	20	C6D6/THF	no	97	0	0	0	0	2
8	Na (10)	22	20	C6D6/THF	no	0	7	16	8	5	3
9	K (10)	22	20	C6D6/THF	no	0	0	8	4	3	10
10	Li (10)	22	80	C6D6/THF	no	0c	0c	0c	0c	0c	18c
						0d	0d	0d	0d	38b,d	15b,d
11	Na (10)	22	80	C6D6/THF	no	0	0	12	13	0	0
12	K (10)	22	80	C6D6/THF	no	0	0	7	5	0	2

^aNeat C₆D₆ or a 9:1 mixture of C₆D₆/THF were used.

^bMixture of cis:trans-4_C6D5,D in a ca. 4:3 ratio.

^cSpectra recorded after cooling down the samples at room temperature during 1 h.

^dSpectra recorded after 10 additional hours at room temperature.