类镓等电子序列PdⅩⅥ－TeⅩⅫ的4s~24p－4s4p~2、4s~24p－4s~25s跃迁谱线和振子强度的理论计算

对类镓等电子序列ＧａⅠ－ＸｅⅩⅩⅣ离子４ｓ２４ｐ、４ｓ４ｐ２、４ｓ２、５ｓ组态能级结构和组态相互作用进行了理论分析，找出沿等电子序列的变化规律。用我们提出的拟合公式预测ＳｕⅩⅩ－ＴｅⅩⅫ离子４ｓ２４ｐ、４ｓ４ｐ２、４ｓ２５ｓ组态能级，并给出４ｓ２４ｐ－４ｓ４ｐ２、４ｓ２４ｐ－４ｓ２５Ｓ谱线波长和ＨＸＲ方法的理论计算振子强度，理论计算值与实验值进行了比较。     

RhXⅥ-InXX离子n=4 Complex跃迁谱线和振子强度的计算

 对类锌等电子序列ZnI–SnXXI离子n=4Complex组态的能级结构和组态相互作用进行了理论分析。通过分析HXR方法理论计算值与实验值之差DE随Zc的变化关系，找出了用于最小二乘拟合计算的半经验拟合公式，用此公式预测了CdXIX–InXX离子n=4Complex中至今还没有实验值的部分能级。给出了4s²-4s4p, 4s4p-4s4d跃迁波长和相应的HXR方法计算的振子强度，同时也对预测能级值的可靠性作了说明。     

用电子—原子碰撞研究

本文回顾了原子碰撞方面的研究工作,评述了近年来这一领域中的若干进展。目前原子碰撞的研究成果已被广泛应用到化学动力学、气体激光器、激光同位素分离、重离子加速器等方面。本文讨论了慢电子被原子散射的物理模型。考虑到在入射电子作用下靶原子的极化效应,入射电子与靶原子的电子间的交换作用和入射电子波的畸变,得到了入射电子与靶原子相互作用的解析势能函数,并讨论了氦、氩、锂、钠等原子对慢电子散射的最近研究成果。     

Ab Initio Calculations for the Polarizabilities of Small Sulfur Clusters

Polarizabilities of small Sn （n = 2-8） clusters are calculated by using the higher-order finite-difference pseudopotential density functional method in real space. We find that the polarizabilities of the clusters are considered to be higher than the value estimated from the “hard sphere” model using the bulk static dielectric constant. The computed polarizabilities per atom tend to decrease with the increasing cluster size. The polarizabilities are closely related to the HOMO-LUMO gaps and the geometrical configurations.     

自悬浮定向流法制备纳米铜微粒及其结构表征

 采用自悬浮定向流法制备金属铜纳米微粒，并用TEM，XRD和AES等分析手段研究了铜纳米微粒的形貌、粒度、结构及其表面氧化层特性。结果表明，在一定的参数条件下采用自悬浮定向流法可制备出单晶纳米铜微粒，并且通过工艺参数的调控可达到对微粒粒度的控制。     

高密度氩等离子体电子密度的计算

用屏蔽氢离子模型计算了冲击压缩产生的温度T～2.0eV、密度ρ～0.01g/cm3～0.49g/cm3范围内氩等离子体的电子密度,探讨了不同温度、密度范围内的高密度氩等离子体中粒子之间相互作用对电子密度的影响.     

Analysis of Charge State Distribution by Non-Local Thermodynamic-Equilibrium Spin-Orbit-Split-Array Collisional Radiative Model

A collisional radiative model based on the spin-orbit-split-arrays is used to determine the charge state distribution of gold plasmas. The ab initio atomic structure code of Cowan and the spin-orbit-split-array model were used to calculate all the emission spectra of the different gold species, and a non-local thermodynamic-equilibrium model was coupled to calculate the ion populations at a given plasma density and electron temperature. The charge state distribution and other plasma parameters were determined by comparing the experimental spectra with the theoretical simulated soectra of gold plasmas.     

The evaluation of bond dissociation energies for NO2 scission in nitro compounds using density functional and complete basis set methods

By using the density functional theory （B3LYP） and four highly accurate complete basis set （CBS-Q, CBS-QB3, CBS-Lq, and CBS-4M）ab initio methods, the X（C, N, O）-NO2 bond dissociation energies （BDEs） for CH3NO2, C2H3NO2, C2H5NO2, HONO2, CH3ONO2, C2H5ONO2, NH2NO2 （CH3）2NNO2 are computed. By comparing the computed BDEs and experimental results, it is found that the B3LYP method is unable to predict satisfactorily the results of bond dissociation energy （BDE）; however, all four CBS models are generally able to give reliable predication of the X（C, N, O）-NO2 BDEs for these nitro compounds. Moreover, the CBS-4M calculation is the least computationally demanding among the four CBS methods considered, Therefore, we recommend CBS-4M method as a reliable method of computing the BDEs for this nitro compound system.     

H2,HF分子的基态势能函数

通过二次组态相互作用方法QCISD计算了H2，HF分子基态的平衡结构、振动频率和离解能．并使用基组6-311＋＋G（3df，3pd）对H2分子，HF分子基态进行了单点能扫描计算，采用最小二乘法拟合标准Murrell—Sorbie函数得到了相应的势能函数和与该基组相对应的光谱常数（ωe，ωe,χe，βe，ae），计算结果与实验数据吻合．     

慢电子与原子,分子碰撞的理论研究

艹勾清泉教授建立的慢电子散射物理模型被广泛用于研究电子、正电子与原子、分子碰撞，通过三十多年的研究实践证明艹勾清泉教授慢电子散射物理模型是成功的