Search for the global minimum structures of AlB3H(2n) (n = 0 - 6) clusters

Area of Science:

• Computational chemistry
• Materials science
• Inorganic chemistry

Background:

• Aluminum borohydride clusters are of interest for their potential applications.
• Understanding their structural and electronic properties is crucial for further research.

Purpose of the Study:

• To determine the global minimum energy structures of AlB3H2n clusters (n=0-6).
• To investigate the structural and electronic properties of the most stable isomers.
• To analyze the chemical bonding within these clusters.

Main Methods:

• Stochastic search method combined with B3LYP/6-31G level of theory.
• Geometry optimization and frequency calculations using B3LYP and CCSD(T) methods with the 6-311++G(**) basis set.
• Adaptive Natural Density Partitioning (ADN P) for chemical bonding analysis.

Main Results:

• The global minimum structures for AlB3H2n (n=0-6) clusters were identified.
• Structural parameters and electronic properties of the lowest-lying isomers were characterized.
• H2 fragmentation energies and chemical bonding were analyzed for the most stable configurations.

Conclusions:

• The study provides a comprehensive theoretical investigation of aluminum borohydride clusters.
• The findings offer insights into the stability and bonding characteristics of these systems.
• This research serves as a foundation for experimental studies and potential applications.