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[求助]
Dmol3計(jì)算周期性體系振動(dòng)頻率時(shí)k點(diǎn)的設(shè)置問(wèn)題
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本人用Dmol3做過(guò)渡態(tài),當(dāng)時(shí)勾選了frequency,但計(jì)算后outmol里只有 +++ Entering Vibrations Section +++ Message: Entering vibrations section Harmonic frequencies will be computed by finite differences. Number of displacements per atom is: 2 Step size for finite differences is: 0.010000 Bohrs Message: License checkin of MS_dmol successful Message: License checkin of MS_dsolid successful Message: DMol3 job finished successfully 并且,在outmol前端也有 Warning: Input k points are used for computing vibrational frequencies They must contain full non-symmetrized set for vibrations, no check is applied Warning: kpoints file must contain full - non-symmetrized set for vibrations, no check is applied 現(xiàn)在我想單獨(dú)算振動(dòng)頻率,input文件盒kpoint文件如下: # Task parameters Calculate energy Symmetry off Max_memory 2048 # Electronic parameters Spin_polarization unrestricted Charge 0 Basis dnd Pseudopotential none Functional gga(p91) Aux_density octupole Integration_grid fine Occupation thermal 0.0050 Cutoff_Global 5.1000 angstrom Scf_density_convergence 1.0000e-006 Scf_charge_mixing 0.2000 Scf_spin_mixing 0.5000 Scf_iterations 300 Scf_diis 6 pulay # Kpoint definition file (intervals/offset): Kpoints file 1 1 10 0.0000 0.0000 0.0000 g-TS-fre.kpoints # Calculated properties Frequency_analysis on ———————————————————————————— $reciprocal sampling points and weights 0.0000000000 0.0000000000 0.4500000000 0.1000000000 0.0000000000 0.0000000000 0.3500000000 0.1000000000 0.0000000000 0.0000000000 0.2500000000 0.1000000000 0.0000000000 0.0000000000 0.1500000000 0.1000000000 0.0000000000 0.0000000000 0.0500000000 0.1000000000 0.0000000000 0.0000000000 -0.0500000000 0.1000000000 0.0000000000 0.0000000000 -0.1500000000 0.1000000000 0.0000000000 0.0000000000 -0.2500000000 0.1000000000 0.0000000000 0.0000000000 -0.3500000000 0.1000000000 0.0000000000 0.0000000000 -0.4500000000 0.1000000000 $end 這個(gè)還是算不了,提示語(yǔ)與找過(guò)渡態(tài)是一樣,請(qǐng)問(wèn)所謂full-non-symmetrized是什么?具體怎么添加? |
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嗯 謝謝回復(fù) 我檢查過(guò)對(duì)稱性,已經(jīng)是P1了,.car和.input文件中也沒(méi)有關(guān)于對(duì)稱性的設(shè)置...不過(guò)問(wèn)題應(yīng)該是出在對(duì)稱性,就是不知道怎么改...之前結(jié)構(gòu)優(yōu)化的時(shí)候也遇到一個(gè)對(duì)稱性的問(wèn)題,在勾選優(yōu)化超胞的前提下,如果不勾symmetry,超胞會(huì)變形,勾上symmetry,會(huì)提示密度矩陣無(wú)法對(duì)稱化,然后任務(wù)失敗,可我在自己電腦上勾上symmetry運(yùn)行(服務(wù)器上裝的5.5,自己電腦裝的5.0),卻沒(méi)有出現(xiàn)這個(gè)問(wèn)題...搞不懂... |
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