將[Na]2[S,S-C6H4]與MnBr2在THF溶液中反應形成 [Na][Mn(THF)(S,S-C6H4)2]以[PPN][Cl]將其陽離子置換後形成[PPN] [Mn(THF)(S,S-C6H4)] (1)。化合物1在CH2Cl2溶液中則會以[PPN]2[Mn(S,S-C6H4)2]2 (2)形式存在。化合物1及2在加入一氧化氮後皆會形成[PPN] [(NO)Mn(S,S-C6H4)2] (3)，顯示化合物1與2皆可作為良好的一氧化氮捕捉劑。藉由化合物3周圍配位基可知其電子環境為{Mn(NO)}5由X-ray 單晶繞射結構解析可知Mn-N-O角度為176.87(14) ∘且IR光譜為1729 cm-1(KBr)，我們推測化合物3屬於MnII及NO+的電子狀態。
利用還原劑[Me4N][BH4]將化合物1與2還原可以得到[PPN]2[Mn(S,S-C6H4)2] (4)，化合物4對空氣有極高的敏感度。將化合物4在CH3CN溶劑下加入適量的NO(g)可以得到[Me4N]2[(NO)Mn(S,S-C6H4)2] (5)，其Mn-N-O角度為177.1∘，IR光譜為1651 cm-1，與其他Mn-nitrosyl化合物比較後可發現電子環境可能為{MnIII( NO—)}6。
此外，[PPN]2[Mn(S,S-C6H4)3] (6)並無法像Fe(III)(DTC)3一樣可作為NO trapping agent。由此可知中心金屬電子環境不同對於化合物對NO反應性影響會有很大的不同。
化合物1及4與NO反應後，分別生成[PPN] [(NO)Mn(S,S-C6H4)2] (3)及[Me4N]2[(NO)Mn(S,S-C6H4)2] (5)；化合物1與O2反應則會decomposed，而化合物4則會氧化為化合物1 (in THF)；分別purge CO氣體至兩個化合物溶液中，皆無任何的反應發生。所以化合物1及4對於NO具有專一性，在non-heme化合物中有辨識CO、NO、O2此三個小分子的功能。

Reaction of [PPN]2[Mn(S,S-C6H4)2]2 (2) and NO(g) afforded a discrete mononitrosyl-manganese [PPN][(NO)Mn(S,S-C6H4)2] (3) assigned as a {MnII(NO+)}5 electronic structure based on IR spectroscopy and X-ray crystallography diffraction analysis. Compound 2 was reduced by [Me4N][BH4] to yield [PPN]2[Mn(S,S-C6H4)2] (4) which was then nitrosylated to produce [PPN]2[(NO)Mn(S,S-C6H4)2] (5). A single-crystal X-ray structure determination of 5 reveals distorted square pyramidal with linearly coordinated nitrosyl ( ∠Mn-N-O is 177.1(6) ) having Mn-N bond length of 1.607(6) Å . Spectroscopic characterization of complex 5 reveals NO stretching frequency at 1651 cm-1. Comparing with other Mn-nitrosyl complexes, compound 5 was best described as a {MnIII (NO—)}6 core. Among small molecules, NO, CO and O2, only NO can be trapped by compounds 1 and 4 to convert to compounds 3 and 5, respectively. Based on these results, compounds 1 and 4 can be utilized to discriminate the small molecules NO, CO and O2. Upon contact with dry O2, [PPN]2[(NO)Mn(S,S-C6H4)2] (5) was transformed into [PPN]2[Mn(S,S-C6H4)3] (6) which was identified by X-ray crystallography diffraction analysis.

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