Abstract
The equilibrium structures, electronic properties of bimetallic Ti1-4M (M=V, Fe, Ni) clusters are investigated by using the density functional method within generalized gradient approximation in conjunction with the valence basis set. Considering the spin multiplicity effect, the geometries with different spins are optimized to find the ground states. For the ground states, the natural bonding orbital analysis (NBO) is performed and shows that the 4s electrons always transfer to the 3d orbital in the bonding atoms so that 4s and 3d orbitals hybridize with each other. The electron transfers from Ti atoms to the ‘impurity’ atoms (V, Fe, and Ni) are also found. The two kinds of electron transfer mechanisms are considered to be the contributor for the stabilities of the studied clusters. The Wiberg bond order and AIM (atoms in molecules) analyses indicate that the relative stabilities of chemical bonds are: \(\text{Ti-V/Ti-Fe} > \text{Ti-Ti} > \text{Ti-Ni}\). The spin magnetic moments are found to be mostly located at Ti atoms. Several clusters like Ti2V, Ti3V, Ti3Ni and Ti4Ni present the high moments.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
