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使用高斯优化au4的s0,s1并进行频率计算,均无虚频;然后对两个fchk文件转化为fcc文件进行IC速率计算。计算fcc.inp文件如下
$$$
PROPERTY = IC ; OPA/EMI/ECD/CPL/RR/TPA/TPCD/MCD/IC/NRSC
MODEL = AH ; AS/ASF/AH/VG/VGF/VH
DIPOLE = FC ; FC/HTi/HTf
TEMP = 300.00 ; (temperature in K)
BROADFUN = GAU ; GAU/LOR/VOI
HWHM = 0.06 ; (broadening width in eV)
METHOD = TD ; TI/TD
;VIBRATIONAL ANALYSIS
NORMALMODES = COMPUTE ; COMPUTE/READ/IMPLICIT
COORDS = CARTESIAN ; CARTESIAN/INTERNAL
;INPUT DATA FILES
STATE1_FILE = au4-s1-f-1.fcc
STATE2_FILE = au4.fcc
ELDIP_FILE = nac_au4-s1-f-1_fchk
运行后会报错,报错内容为
NOTE: The calculation for this State will assume non-stationary point since the gradient
is not negligible (maximum atomic gradient: 0.000885 a.u.)
============================================
FATAL ERROR: Non-zero gradient on State2 with Adiabatic model
请问这是由于什么原因引起的呢(之前我算系间穿越速率也出现过这个报错,但是那时候t1有虚频,我以为是虚频的原因,但是现在这个没有虚频呀)
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