第41卷第6期2024年12月J.At.Mol.Phys.,2024,41:062002(8pp)原子与分子物理学报JOURNALOFATOMICANDMOLECULARPHYSICSMo,(n=2-13)和Mo,C(n=1-12)团簇的几何结构和电子结构Vol.41No.6Dec.2024杨文辉,相悦,陈轩,段海明(新疆大学物理科学与技术学院,乌鲁木齐830017)摘要:结合遗传算法和CALYPSO软件,采用密度泛函理论,对Mo(n=2-13)及Mo,C(n=1-12)团簇基态的几何结构与电子结构展开详细研究:通过计算其基态结构的平均键长、平均结合能、二阶差分能、分裂能和前线轨道能级,对基态结构的稳定性随总原子数变化的关系展开了研究,计算结果表明,Mo,团簇基态结构的稳定性可通过掺杂单个C原子而提高:综合团簇的二阶差分能、分裂能可知,n=6,9时Mon团簇的稳定性较高,n=4,7,10时Mo,C团簇的稳定性较高.关键词:密度泛函理论;Mo,团;Mo,C团簇;基态结构;电子性质中图分类号:0561.1GeometricandelectronicstructuresofMo,(n=2-13)and文献标识码:AMo,C(n=1-12)clustersD0I:10.19855/j.1000-0364.2024.062002YANGWen-Hui,XIANGYue,CHENXuan,DUANHai-Ming(CollegeofPhysicsScienceandTechnology,XinjangUniversity,Urumqi830017,China)Abstract:CombinedwiththegeneticalgorithmandCALYPSOsoftware,thegeometricalandelectronicstruc-turesofthegroundstatesofMo,(n=2-13)andMo,C(n=1-12)clusterswerestudiedindetailbydensityfunctionaltheory.Theaveragebondlength,averagebindingenergy,second-orderdifferenceenergy,splitingenergyandHighestOccupiedMolecularOrbital-LowestUnoccupiedMolecularOrbital(HOMO-LUMO)ofthegroundstatestructurewerecalculatedtoinvestigatethestabilityofthegroundstatestructurewithrespecttothetotalatomicnumber.Thecalculatedresultsshowedthatthestabilityoftheground-statestructuresofMo,clus-terscouldbeimprovedbydopingwithindividualCatoms.Thesecond-orderdifferentialenergyandsplitingenergyoftheclusterswerecombinedtoshowthatthestabilityofMo,clustersishigheratn=6and9,andthatofMo,Cclustersishigheratn=4,7and10.Keywords:Densityfunctionaltheory;Mo,cluster;Mo,Ccluster;Groundstatestructure;Electronicproperty质随着团簇尺寸的增加迅速改变,通过该现象可1引言以选取合适的基元来设计和研发新的材料.因此,团簇是物质由原子分子向大块物体转变过程对团簇的几何结构及电子结构[3-8]的研究一...