𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Role of entropy in formation of van der Waals complexes

✍ Scribed by P. Hobza; P. Čársky; R. Zahradník


Publisher
John Wiley and Sons
Year
1979
Tongue
English
Weight
198 KB
Volume
16
Category
Article
ISSN
0020-7608

No coin nor oath required. For personal study only.

✦ Synopsis


Abstract

The T__Δ__S^0^ term has been estimated for various types of van der Waals molecules and its importance for the stability predictions has been demonstrated. With hydrogen‐bonded complexes the absolute values of Δ__H__^0^ and T__Δ__S~0~ are comparable at 289°K. With true van der Waals molecules the T__Δ__S^0^ term even represents a dominant contribution to Δ__G__^0^.


📜 SIMILAR VOLUMES


A note about the role of entropy in the
✍ Zdenêk Slanina 📂 Article 📅 1983 🏛 Elsevier Science 🌐 English ⚖ 151 KB

The recently developed concept of entropy-controlled formation of van der Waais complexes based on standard molar changes of enthalpy and entropy has been found unsatisfactory. A thermodynamically consistent trcxtment shows that actual molar chanses of enthalpy and entropy can depend strongly on esp

Exciplex formation in van der Waals comp
✍ Prem B. Bisht; Hrvoje Petek; Keitaro Yoshihara 📂 Article 📅 1993 🏛 Elsevier Science 🌐 English ⚖ 764 KB

Van der Waals complexes composed of naphthalene and triethylamine have been studied in free jet expansions by fluorescence excitation and resonance-enhanced two-photon ionization techniques. Intermolecular vibrational bands with frequencies of 8 and 40 cm-' appear to promote exciplex formation. The

Solvent shifts in van der waals complexe
✍ John C. Ketteley; Jeffrey W. Oram; T.Frank Palmer; John P. Simons; A.Terry Amos 📂 Article 📅 1987 🏛 Elsevier Science 🌐 English ⚖ 584 KB

The solvation and structure of vdW complexes formed in supersonic free-jet expansions of perylene with rare gas atoms and organic "solvent" molecules, using helium as carrier gas, have been investigated. The complexes were probed and analysed by combining laser-induced fluorescence spectroscopy with