共 48 条
Measurement of Silver-π Interactions in Solution Using Molecular Torsion Balances
被引:68
作者:
Maier, Josef M.
[1
]
Li, Ping
[1
]
Hwang, Jungwun
[1
]
Smith, Mark D.
[1
]
Shimizu, Ken D.
[1
]
机构:
[1] Univ S Carolina, Dept Chem & Biochem, Columbia, SC 29208 USA
基金:
美国国家科学基金会;
关键词:
POLYCYCLIC AROMATIC-HYDROCARBONS;
SOLID-STATE;
AG+-PI;
RECOGNITION;
CHEMISTRY;
BINDING;
COMPLEXATION;
RECEPTOR;
DESIGN;
LIQUID;
D O I:
10.1021/jacs.5b04554
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
A new series of molecular torsion balances were designed to measure the strength of individual Ag-pi interactions in solution for an Ag(I) coordinated to a pyridine nitrogen. The formation of a well-defined intramolecular Ag-pi interaction in these model systems was verified by X-ray crystallography and H-1 NMR. The strength of the intramolecular Ag-pi interaction in solution was found to be stabilizing in nature and quantified to be -1.34 to -2.63 kcal/mol using a double mutant cycle analysis. The Ag-pi interaction was also found to be very sensitive to changes in geometry or solvent environment.
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页码:8014 / 8017
页数:4
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