Multiple binding

In chemistry, a multiple bond is an electron pair bond in which two atoms are connected not only by one electron pair, but by several. One distinguishes between:

• Double bond
• Triple bond
• Quadruple bond
• Quintuple binding
• Six-fold binding

In organic chemistry, compounds with at least two multiple bonds can also be classified as follows:

• isolated multiple bonds, e.g. B. isolated double bonds
• conjugated multiple bonds, e.g. B. conjugated double bonds

• cumulative multiple bonds, e.g. B. cumulative double bonds

In substances with delocalized π or δ bonds, there may also be broken bond orders . Known examples are benzene or graphite with binding systems of 1 ¹ / ₂ and 1 ¹ / ₃ .

Individual evidence

1. ^ Siegfried Hauptmann : Organic Chemistry , 2nd revised edition, VEB Deutscher Verlag für Grundstoffindustrie, Leipzig, 1985, pp. 61–64, ISBN 3-342-00280-8 .