In Sodium Nitroprusside and related compounds (eg. brown ring complex) why is the oxidation state of NO +1 and not zero? It seems pretty unusual without any explanation.

Could anyone please explain this, and maybe provide a satisfactory theoretical explanation for the exhibition of 'unusual oxidation state'?

  • $\begingroup$ I have checked these. There is no proper theoretical explanation, though. $\endgroup$ – epsilon-emperor Aug 11 '17 at 16:27
  • $\begingroup$ I'd like to know when NO exists in 0 and when it exists +1, with some sort of theoretical explanation. $\endgroup$ – epsilon-emperor Aug 11 '17 at 16:28
  • $\begingroup$ @NilayGhosh Did you delete those links? Even vaguely related stuff should stay linked. Also why you didn't CV duplicate? $\endgroup$ – Mithoron Aug 11 '17 at 16:33
  • $\begingroup$ Those links do not answer my confusion. Some say that Fe is in +3 and NO is in -1, while some say that both are in +1 oxidation state. Which one is right? $\endgroup$ – epsilon-emperor Aug 11 '17 at 16:35
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    $\begingroup$ @user28968 read the answers in by F'x and DavePhD, they agree that Fe is 3+ and NO is -1, point to literature that supports this, and that both being +1 was a misconception. $\endgroup$ – Tyberius Aug 11 '17 at 16:43