On the Reactivity of Thiourea Derivatives with Silver(I) Oxide
作者:Sarah K. Pilz、Fabian Mohr
DOI:10.1002/ejic.202000308
日期:2020.6.23
Aryl thioureas of the type ArNHC(S)NR2 react with Ag2O to form the corresponding silver(I) thioureato complexes. Depending on the nature of the thiourea, either insoluble materials, zig‐zag coordination polymers or discrete tetranuclear silver species were isolated and structurally characterised. These thioureato complexes react with one, two or three equivalents of a phosphine ligand, forming a series
Two-component initiator system (amine-free) with very good storage stability and particular suitability for acid systems
申请人:Utterodt Andreas
公开号:US20070040151A1
公开(公告)日:2007-02-22
A two-component initiator system having accelerators for curing polymerizable materials comprising the following components: (a) a hydroperoxide compound containing one or more hydroperoxide groups that are bound to a tertiary carbon; (b) a thiourea derivative; and (c) as accelerator, a copper compound which is soluble in the preparation is preferably free of amine and is particularly suited for polymerizable dental compositions.