The structures of BH+4, BH4, and BH-4 were optimized at the level of B3LYP/6-311+G(d,p) and CCSD/6-311+G(d,p). The topological analyses of electronic density for chemical bonds of the neutral and charged BH4 were performed.是什么意思_The structures of BH+4, BH4, and BH-4 were optimized at the level of B3LYP/6-311+G(d,p) and CCSD/6-311+G(d,p). The topological analyses of electronic density for chemical bonds of the neutral and charged BH4 were performed.在线翻译_英语_读音_用法_例句