TABLE IV.

Fundamental vibrational levels (cm⁻¹) computed for cyclopentadiene using HI-RRBPM, in comparison to VPT2 values.

		HI-RRBPM
Sym	VPT2	A	B	C	D	E	F	Assignment
A1		19 911.13	19 907.80	19 906.52	19 904.74	19 904.28	19 903.98	ZPE
B1	342	318.55	317.19	315.50	314.00	313.95	313.64	${\nu }_{19}$
A2	516	509.48	508.06	507.48	506.50	506.41	506.25	${\nu }_{14}$
B1	666	654.48	653.09	650.44	648.21	647.87	647.58	${\nu }_{18}$
A2	701	688.11	686.26	684.91	684.21	684.00	683.81	${\nu }_{13}$
B2	802	802.47	800.48	800.02	798.94	798.61	798.32	${\nu }_{27}$
A1	802	805.68	802.35	802.07	800.72	800.59	800.38	${\nu }_{10}$
B1	888	877.30	874.93	872.79	870.78	870.41	870.07	${\nu }_{17}$
A1	906	909.50	907.21	907.12	905.87	905.79	905.43	${\nu }_9$
B1	933	924.11	919.85	922.24	918.03	918.15	917.59	${\nu }_{16}$
A2	932	925.85	921.89	921.74	918.31	918.88	919.33	${\nu }_{12}$
B2	949	948.21	945.21	944.12	943.35	942.84	942.51	${\nu }_{26}$
A1	991	1 005.74	996.10	994.20	992.81	992.00	991.61	${\nu }_8$
A2	1 088	1 084.87	1 083.21	1 080.38	1 078.48	1 078.19	1 077.84	${\nu }_{11}$
B2	1 093	1 091.48	1 089.46	1 088.58	1 086.18	1 085.89	1 085.41	${\nu }_{25}$
A1	1 112	1 112.64	1 110.12	1 108.80	1 106.84	1 106.88	1 106.48	${\nu }_7$
B2	1 221	1 227.81	1 221.25	1 219.36	1 214.97	1 213.94	1 213.06	${\nu }_{24}$
B2	1 285	1 288.22	1 283.87	1 282.35	1 280.77	1 283.69	1 283.08	${\nu }_{23}$
A1	1 361	1 363.22	1 355.17	1 350.45	1 347.37	1 346.65	1 345.91	${\nu }_6$
A1	1 371	1 375.40	1 370.90	1 368.86	1 366.29	1 366.00	1 365.49	${\nu }_5$
A1	1 501	1 523.47	1 521.22	1 503.45	1 499.54	1 499.19	1 498.45	${\nu }_4$
B2	1 592	1 659.00	1 615.76	1 601.14	1 592.35	1 591.29	1 590.09	${\nu }_{22}$