Legătură phi

Orbitalii atomici f aliniați în mod corespunzător se pot suprapune pentru a forma un orbital molecular φ (o legătură φ)

Legătura phi (notată adesea cu simbolul φ) este un tip de legătură covalentă în care șase lobi ai unui orbital atomic implicat suprapune șase lobi al celuilalt orbital atomic implicat. Suprapunerea duce la formarea unui orbital molecular de legătură cu trei planuri nodale care conțin axa internucleară și trec prin ambii atomi..^[1]^[2]^[3]^[4]

Litera grecească φ din denumire se referă la orbitalii f, deoarece simetria orbitală a legăturii φ este aceeași cu cea a orbitalului f obișnuit (cu 6 lobi) atunci când este observat pe axa legăturii.

Referințe

^ Cotton, F. A.; Wilkinson, G. (1988). Advanced Inorganic Chemistry (ed. 5th). John Wiley. p. 1087–1091. ISBN 0-471-84997-9.
^ Douglas, B.; McDaniel, D. H.; Alexander, J. J. (1983). Concepts and Models of Inorganic Chemistry (ed. 2nd). Wiley. p. 137. ISBN 9780471895053.
^ Huheey, J. E. (1983). Inorganic Chemistry (ed. 3rd). Harper and Row. p. 743–744. ISBN 9780060429874.
^ Miessler, G. L.; Tarr, D. A. (1998). Inorganic Chemistry (ed. 2nd). Prentice-Hall. p. 123–124. ISBN 978-0138418915.

Vezi și

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v • d • m

Legături chimice

Teorie

Orbital atomic (Metoda legăturii de valență) • Orbital molecular (Metoda orbitalilor moleculari • CLOA) • Ordin de legătură • Teoria RPESV • Antilegătură • Aromaticitate (Regula lui Hückel) • Valență • Covalență • Conjugare • Hapticitate • Hiperconjugare • Hibridizare • Hipervalență • Rezonanță

Forțe intramoleculare
„Puternice”

Legături covalente

După simetrie	Legătură sigma (σ) • Legătură pi (π) • Legătură delta (δ) • Legătură phi (φ)

După ordin	Legătură simplă (1) • Legătură dublă (2) • Legătură triplă (3) • Legătură cvadruplă (4) • Legătură cvintuplă (5) • Legătură sextuplă (6)

Altele	Legătură coordinativă • Legătură disulfurică

Legătură metalică

Legătură ionică

Legătură ionică (anion • cation)

Forțe intermoleculare
„Slabe”

Forțe van der Waals	Forță de dispersie London • Legătură dipol-dipol

Altele	Legătură de hidrogen • Legătură necovalentă

Ruperea legăturilor

Homoliză • Heteroliză

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