The asymmetric reduction mechanism of p - methylcyclohexanone by sodium borohydride was investigated with ab initio calculations 摘要用从头计算方法对硼氢化钠不对称还原对甲基环己酮的机理进行了研究。
Arbitration clause is separable and enforceable in contract that is void ab initio , world arbitration & mediation report , october , 1995 参见王生长“仲裁协议及其效力确定” ,载《仲裁与法律》 2001年第5期。
Allen and co - worker did ab initio calculation to test the adequacy of scf mo calculations for predicting molecular equilibrium geometries 爱伦及其同事应用从头计算法来考查scf mo计算对于预示分子平衡几何形的适宜性。
Theoretical investigations were performed to explore the electronic structure and optical properties of fluorescein using zindo , ab initio and dft methods 用zindo 、从头算和密度泛函理论方法研究荧光素及其衍生物的电子结构和光谱性质。
Theoretical investigations were performed to explore the electronic structure and optical properties of fluorescein using zindo , ab initio and dft methods 摘要用zindo 、从头算和密度泛函理论方法研究荧光素及其衍生物的电子结构和光谱性质。
These data sets were used to evaluate five ab initio gene prediction programs : ricehmm , glimmerr , genemark , fgensh and bgf 用这两个测试数据集合评估了5个在水稻基因组中预测基因的程序: ricehmm glimmerr genemark fgenesh和我们自己编写的bgf 。
Our dynamic calculation is carried out on a recent ab initio potential energy surface ( pes ) of jordan and gilbert . the tdwp method also is employed as a computational tool 然后在从头计算法得到的解析势能面( jordanandgilbert )上,采用含时波包法进行了量子计算。
The following results have been concluded : ( a ) ab initio has its advantages in the calculating of atom cluster containing transition metal , especially in precision and total energy calculations 结果表明: ( 1 )从头计算方法在用于原子簇的计算中有其自身的优势,尤其是在精度和总能量计算方面。
The hybrid density functional theory at ab initio level was applied to study solvent effects on geometrical structures , charge distribution , and solvatochromic shifts of 4 - nitro - buta - 1 , 3 - dienylamine molecule 摘要在从头计算的水平上,利用杂化密度泛函理论研究了溶剂对4 -硝基1 , 3 -丁二烯基胺分子的几何结构、分子内的电荷分布和电荷转移态的能量漂移的影响。
The structure and energy level of the al clusters include 2 atoms to to 7atoms was calculated with ab initio method . discrete energy levels were found in the clusters , which is different from the energy level distribution of bulk materials 计算方法是采用gaussia98程序的b3lyp的方法和全电子的基函数6 - 311 + g * ,对al2 ? al7小团簇的结构和能级进行了abinitio计算。