Question

Draw three resonance structures for nitrosyl chloride (NOCl) and assign formal charges to each atom. (Nitrogen is the central atom)

A) Which resonance structure is favored by formal charge considerations & why?

B) For the favored resonance structure, what is the electron and molecular geometry around the nitrogen atom? What is the bond angle?

Answer 1

Lewis structe of Noc! :- Ny - 152 252 253 - 5 valnce elechon Of - 15 25 2p4 - 6 valnce election C1 1715? 25?2p6353p5 - 7 valnce electron. Q = To tal valnce electron - tre charge t he charge = (5+6+7) - oto = 18 electon's, Lewis spretre can be drawn as octet of each the 'N' i central atom. to complet 2 :C1: N:: ö N Total valnce é in _ Il centrow atom any tre cherge +any-vecharge + no. of monoval) atom 155 (5-0 +0 +1) ,2-4(6), 2-3 Thus it showe sp2 Hybridization of Trigonal planar geometry with bent or angular shape. Formal charge : - - bond angle is also the below 120° F.C = Valnce electron – L. P elechon - B-Pelectron FoC for N : Focoon Cl F.C=5 -2 -3 F. C= 7-6 - 2 F-C=o foc=7-6-1 F.C=ol Foc on 'o' » F.C = 6- 4- = 6-4-2 F-c = 9 ö= ici: -N = c: The the charge cancell with are charge so go any charge on Noch old 5 Resonance struche are