Mass spectrometric determination of dissociation energies of the borides and silicides of some transition metals

The monoborides and monosilicides of some transition metals have been detected in the vapours effusing from a Knudsen cell at high temperatures. Their dissociation energies have been determined to be: D0°(RuB(g))= 443.2±21; kJ/mol; D0°(RuSi(g))=393.3±21; kJ/mol; D0°(RhB(g))=472.1±21; kJ/mol; D0°(RhSi(g))= 391±18; kJ/mol; D0°(PdB(g))=325.3±21; kJ/mol; D0°(PdSi(g))=309.6±14; kJ/mol; D0°(Irb(g))= 508.5±17; kJ/mol; D0°(IrSi(g))=459.1±21; kJ/mol; D0°(AuB(g))=337.8±16; kJ/mol; D0°(PtSi(g))= 497.3±18; kJ/mol; D0°(AuSi(g))=307.8±12; kJ/mol. D0°(AuSi(g))=307.8±12kj/mol.SCOPUS: ar.j