Nitrogen, orbitals

The geometry about a ligand nitrogen coordinated to a metal ion is assumed to be planar with bond directions defined in Fig. 28. The hybridizations of the nitrogen orbitals for different angles between the bonds in the plane can be written as ... 

The nitrene nitrogen atom of imidogen is sp hybridized. Both the NH bond and the sigma lone pair of electrons use nitrogen orbitals that are rich in 2s character. 

C(8) to be parallel with the nitrogen orbitals, thus providing evidence for the planarity of flavin semiquinones 2. More recent X-ray crystallographic data on the Cl. MP flavodoxin provide confirmatory data on the planarity of the iso-alloxazine ring in its one-electron reduced form. 

Fig. 1. Occupancy of 2sp2 (a, b, c) and 2p, (d) nitrogen orbitals by electrons ( ) in pyridine-like compounds. The orbital designated by c is non-bonding (the shape of the orbitals is somewhat distorted for clarity).

In this case, regardless of the sign given to the nitrogen orbital, there will be an... 

By a similar analysis, the nitrogen orbitals capable of participating in r bonds can be identified ... 

For zirconia with hydroxyl group of bridge type and anion nitrogen, orbital connected with nitrogen appear in the forbidden gap. Thus, zirconia with anion nitrogen and hydrogen on surface must be deep donor. 

Owing to the presence of the molecular 7r system, the nitrogen sp2 hybridized orbitals are not quite similar to those of amides and the following set of functions is usually employed to describe a pyridino nitrogen orbital 47 ... 

The behavior of the methoxy group is characterized by an increase of the population of both cr and V nitrogen orbitals. 

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