The Molecule Calculator:基于量子力学的分子性质快速估算网络服务器
The Molecule Calculator: A web-server for fast quantum mechanics-based estimation of molecular properties
摘要:
介绍了一种新的网络服务器,称为分子计算器(MolCalc)。入口页面是用于交互式分子构建的分子编辑器(JSmol)。然后,所得到的结构可以用于估计分子性质,例如形成热和其他热力学性质,振动频率和振动模式,以及分子轨道和轨道能量。这些性质是使用GAMESS程序在RHF/STO-3G(轨道和轨道能量)或PM 3理论水平(所有其他性质)上计算的,时间取决于分子的大小。这些结果虽然是近似的,但可以帮助学生发展一种关于分子结构如何影响分子性质的“化学直觉”,而无需手动进行基本计算,这对于除了最简单的化学系统之外的所有系统来说几乎是不可能的任务。
英文摘要:
A new web-server called The Molecule Calculator (MolCalc) is presented. The entry page is a molecular editor (JSmol) for interactive molecule building. The resulting structure can then be used to estimate molecular properties such as heats of formation and other thermodynamic properties, vibrational frequencies and vibrational modes, and molecular orbitals and orbital energies. These properties are computed using the GAMESS program at either the RHF/STO-3G (orbitals and orbital energies) or PM3 level of theory (all other properties) in a matter of seconds or minutes depending on the size of the molecule. The results, though approximate, can help students develop a "chemical intuition" about how molecular structure affects molecular properties, without performing the underlying calculations by hand, a near impossible task for all but the simplest chemical systems.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。