Pectoralis major ruptures.

Injuries of pectoralis major (PM) muscle are among rare muscle injuries. Due to the lack of experience and knowledge in this field, they are often missed or improperly treated. Most often they are caused by an indirect mechanism, during strength sports, typically using the bench press.

Cu2(dien)2Ag5(CN)9 containing the one-dimensional polymeric cation [Cu(dien)Ag(CN)2](n+)(n) and the unusual [Ag2(CN)3]- anion (dien is diethylenetriamine).

From the 1:1 system of [Cu(dien)(2)](NO(3))(2) and K[Ag(CN)(2)] in water (dien is diethylenetriamine, C(4)H(13)N(3)), the novel compound catena-poly[bis[[mu-cyano-1:2kappa(2)C:N-diethylenetriamine-2kappa(3)N-copper(II)silver(I)]-mu-cyano-1:2'kappa(2)C:N] dicyanosilver(I) tricyanodisilver(I)], [CuAg(CN)(2)(dien)](2)[Ag(CN)(2)][Ag(2)(CN)(3)], has been isolated. The structure is formed from positively charged [-Cu(dien)-NC-Ag-CN-](n+)(n) chains and two isolated centrosymmetric [Ag(CN)(2)](-) and [Ag(2)(CN)(3)](-) anions. In the cationic chains, the Cu atoms are linked by bridging dicyanoargentate groups, and the deformed square-pyramidal coordination polyhedron of the Cu(II) cation is formed from a tridentate chelate-like bonded dien ligand and two N-bonded bridging cyano groups.