Jordan Abraham J, Walde Rebecca K, Schultz Kelly M, Bacsa John, Sadighi Joseph P
School of Chemistry and Biochemistry , Georgia Institute of Technology , Atlanta , Georgia 30332-0400 , United States.
Murdock Hall, Department of Chemistry , Linfield College , McMinnville , Oregon 97128 , United States.
Inorg Chem. 2019 Aug 5;58(15):9592-9596. doi: 10.1021/acs.inorgchem.9b01676. Epub 2019 Jul 22.
This study examines the reactivity of a series of copper(I) sulfide complexes stabilized by the expanded-ring N-heterocyclic carbene (NHC) 1,3-bis(2,6-diisopropylphenyl)-4,5,6,7-tetrahydro-1,3-diazepin-2-ylidene (7Dipp) toward the nitrosonium ion (NO). 7Dipp is shown to support neutral sulfide- and disulfide-bridged dicopper(I) complexes, as well as mononuclear copper(I) hydrosulfide. The addition of NO to each of these results in the formation of NHC-supported copper(I) cations and elemental sulfur. Reduction of copper(I) to copper(0) is observed upon reaction of NO with dicopper(I) sulfide or disulfide, whereas ammonium ion formation is observed upon reaction of copper(I) hydrosulfide with NO. Ammonium ion formation is likewise observed upon reaction of NO with (7Dipp)copper(I) hydride.
本研究考察了一系列由扩环N-杂环卡宾(NHC)1,3-双(2,6-二异丙基苯基)-4,5,6,7-四氢-1,3-二氮杂环庚-2-亚基(7Dipp)稳定的硫化亚铜配合物对亚硝基离子(NO)的反应活性。结果表明,7Dipp能稳定中性硫化物和二硫化物桥连的二价铜(I)配合物以及单核硫化铜(I)氢化物。向这些配合物中加入NO会导致形成NHC稳定的铜(I)阳离子和元素硫。当NO与二价铜(I)硫化物或二硫化物反应时,观察到铜(I)还原为铜(0),而当硫化铜(I)氢化物与NO反应时,观察到铵离子的形成。当NO与(7Dipp)氢化铜(I)反应时,同样观察到铵离子的形成。