Prediction of strong O-H/M hydrogen bonding between water and square-planar Ir and Rh complexes
Abstract
Intermolecular OH/M interactions, between a water molecule and square-planar acac complexes ([M(acac)L-2]), with different types of L ligands (en, H2O, CO, CN-, and OH-) and different types of metal atoms (Ir(I), Rh(I), Pt(II), and Pd(II)) were studied by high level ab initio calculations. Among the studied neutral complexes, the [Pd(acac)(CN)(CO)] complex forms the weakest interaction, -0.62 kcal mol(-1), while the [Ir(acac)(en)] complex forms the strongest interaction, -9.83 kcal mol(-1), which is remarkably stronger than the conventional hydrogen bond between two water molecules (-4.84 kcal mol(-1)).
Source:
Physical Chemistry Chemical Physics, 2017, 19, 13, 8657-8660Publisher:
- Royal Soc Chemistry, Cambridge
Projects:
- Noncovalent interactions of pi-systems and their role in molecular recognition (RS-172065)
- Qatar Foundation for Education, Science and Community Development
Note:
- The peer-reviewed version: http://cer.ihtm.bg.ac.rs/handle/123456789/3237
DOI: 10.1039/c6cp08796e
ISSN: 1463-9076
PubMed: 28317955