Table 3.

Key ground state vibrational modes involved in the radiationless decay of the lowest-lying 2¹A_g^- state of the central-cis C₁₈ linear polyene.

v″	σf	Sym	${\left|H_{v″}^{if}\langle 0|1\rangle \right|}^2$	${\left|H_{v″}^{if}\langle 0|2\rangle \right|}^2$
	cm-1	C2v	cm-2	cm-2
72	1654.5	b2	701.422	230.917
71	1647.1	b2	565.526	284.383
33	906.6	a2	233.251	96.855
23	1636.2	a1	203.370	115.032
11	1097.9	a1	179.413	25.095
50	950.9	b1	85.270	3.239
34	947.9	a2	70.045	2.393
24	1639.2	a1	53.967	4.476
70	1617.6	b2	53.625	33.056
44	384.3	b1	40.759	7.474
48	909.4	b1	36.213	15.267
21	1542.2	a1	34.951	25.804
60	1123.2	b2	28.344	6.157
69	1569	b2	26.298	12.854
59	1101.4	b2	26.163	15.682
49	940.3	b1	21.942	7.201
$\text{∑}_{v″}{\left|H_{v″}^{if}\langle 0|k\rangle \right|}^2$ [above list]			2360.559	885.885