Tho Nguyen Huu, Bui Thanh Q, Si Nguyen Thanh, Nhat Pham Vu, Nhung Nguyen Thi Ai
Faculty of Natural Sciences Education, Sai Gon University, Ho Chi Minh City, 700000, Vietnam.
Department of Chemistry, University of Sciences, Hue University, Hue City, 530000, Vietnam.
J Mol Model. 2022 Feb 7;28(3):54. doi: 10.1007/s00894-022-05044-8.
Gold and gold-based clusters are still receiving special attention owing to their diverse applicability. Density functional theory (DFT) calculations were employed to investigate the structures, the lone-pair affinity of some small Au clusters (n = 16, 17, and the effects of chromium dopant on their properties. Regarding Au, the boat-like C conformation and the hollow T form are found to be energetically quasi-degenerate and strongly competing as the ground state. In terms of Au, a star-like cage is computed to be more stable than the putative global minimum reported in preceding studies. Given AuCr isomer, a novel structure for the lowest energy is proposed. Binding energies of these species with CO, NH, and PH ligands are also provided as an in-depth reference to the literature. Present results altogether encourage further theoretical implementations, e.g., CCSD(T) and experimental probes, e.g., the infrared, to validate the findings, thus harnessing the potentiality of the complexes.
由于金及其基簇具有多种适用性,它们仍然受到特别关注。采用密度泛函理论(DFT)计算来研究一些小金簇(n = 16、17)的结构、孤对亲和力以及铬掺杂剂对其性质的影响。对于金,发现船型C构象和空心T型在能量上近乎简并,并且作为基态存在强烈竞争。就金而言,计算得出一种星型笼状结构比先前研究报道的假定全局最小值更稳定。对于金铬异构体,提出了一种能量最低的新结构。还提供了这些物种与CO、NH和PH配体的结合能,作为对文献的深入参考。目前的结果共同鼓励进一步的理论研究,例如耦合簇单双激发(CCSD(T))方法,以及实验探索,例如红外光谱,以验证这些发现,从而利用这些配合物的潜力。