Trimethylphosphite stabilized disilver(I) methanedisulfonates as MOCVD precursors

New disilver(I) methanedisulfonates complexes {CH2(SO3)2Ag2·[P(OMe)3]n} (n = 2, 2a; n = 4, 2b; n = 6, 2c) were prepared by reacting [CH2(SO3)2Ag2], which could be synthesized from methanedisulfonic acid and Ag2CO3 in water, with trimethylphosphite in dichloromethane. The molecular structure of 2a was determined using X-ray single crystal analysis. Complex 2a exhibits an infinite chain structure with eight-membered rings (AgOSOAgOSO) fully interconnected by the third sulfonic O atoms. Complex 2b was used to deposit silver films by metal organic chemical vapor deposition (MOCVD) for the first time. The silver film obtained was characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy-dispersion X-ray analysis (EDX).

New disilver(I) methanedisulfonates complexes {CH2(SO3)2Ag2·[P(OMe)3]n} (n = 2, 2a; n = 4, 2b; n = 6, 2c) were prepared by reacting [CH2(SO3)2Ag2] with trimethylphosphite in dichloromethane. The molecular structure of 2a exhibited an infinite chain structure with eight-membered rings (AgOSOAgOSO), fully interconnected by the sulfonic third O atoms. Complex 2b was used to deposit silver films by metal organic chemical vapor deposition (MOCVD) for the first time.Figure optionsDownload as PowerPoint slideHighlights
► Complex 2a exhibited a structure with six-membered rings like cyclic β-diketones.
► Complex 2a was a new type of multinuclear structure with an infinite chain.
► Complex 2b was used as MOCVD precursor successfully for the first time.