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本帖最后由 wujida 于 2020-8-8 16:04 编辑
我用GIMIC计算了苯的感应电流密度,gimic.inp如下:
# NEW INPUT
dryrun=off # don't actually calculate (good for tuning grids, etc.)
mpirun=off # run in parallel mode
title=""
basis="mol" # Name of MOL file with coordinates and basis sets
density="XDENS" # File with AO density and perturbed densities
spherical=off # don't touch, unless you REALLY know what you are doing
debug=1 # debug print level
diamag=on # turn on/off diamagnetic contributions
paramag=on # turn on/off paramagnetic contributions
GIAO=on # turn on/off GIAOs. Don't change unless you know why.
openshell=false
screening=on # use screening to speed up
screen_thrs=1.d-8 # Screening threshold
show_up_axis=true # mark "up" axis in .xyz files
calc=[cdens] # what to calculate, and in which order
cdens {
magnet_axis=-z #[-] i,j,k || x,y,z -> align magnet along axis
scale_vectors=1.0
jtensor="JTENSOR" # file name for the current tensors
jvector="JVECTOR" # file name for the current vectors
grid(base) { # grid type can be: base/std, bond or file (see below)
type=even # even spaced or gauss quadrature distribution on interval
origin=[-8.0, -8.0, 0.0] # origin of grid
ivec=[1.0, 0.0, 0.0] # basis vector i
jvec=[ 0.0, 1.0, 0.0] # basis vector j ( k = i x j )
lengths=[16.0, 16.0, 16.0] # lenthts of (i,j,k)
spacing=[0.2, 0.2, 0.2] # spacing of points on grid (i,j,k)
# grid_points=[50,50,0] # number of gridpoints on grid (i,j,k)
rotation=[0.0,0.0,0.0] # Rotation of (i,j,k) -> (i',j',k') in degrees
# Euler angles, x-y-z convention
}
plot { # file names for plots
vector="JVEC"
modulus="JMOD"
cube_mod="jmod"
gopenmol="jmod.plt"
#projection="JPRJ"
}
}
所绘制结果见附件ben.PNG![]()
将origin=[-8.0, -8.0, 0.0] 改为origin=[-8.0, -8.0, 1.8896],所绘制结果 ,
依图,z方向垂直纸面朝外,按照gimic.inp的设置,磁场为-z,垂直纸面朝里。按http://sobereva.com/147所述,依左手规则,判定环电流方向为逆时针,与图中所示顺时针相反,表现反芳香性。而苯环是芳香性的,我想询问我的计算和判断过程所出的问题在哪?所用mol和XDENS文件见附件
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ben2.PNG
(45.25 KB, 下载次数 Times of downloads: 12)
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ben.PNG
(50.32 KB, 下载次数 Times of downloads: 13)
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XDENS
5.09 MB, 下载次数 Times of downloads: 0
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mol
7.49 KB, 下载次数 Times of downloads: 0
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