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In terms of multiple scattering theory using the crystalline muffin-tin potential and taking into account the scattering on a finite number of atoms the electronic structure of pseudobinary solid solutions NbCxN1 -x is calculated for x = 1.0, 0.75,0.5,0.25, 0.12, and 0. A comparison with APW results is made for x = 0 and 1. It is shown, that the local partial densities of electronic states (DOS) of constituents differ from those in stoichiometric substances. The dependence of DOS a t the Fermi level on carbon concentration x correlates with the dependence of superconducting transition temperature on x. B PaMKaX MeTOAa MHOrOKpaTHOrO paCCeHHW3 C EiCiIOJlb30BaHLleM KPMCTaJIJIMqeCKOrO MT TpOHHaH 3Hepre~~qecKa~ CTpyIcTypa IlCeBnO6MHapHbIX TBepnbIX PaCTBOPOB NbCzN1-z RJIH 5 = 1,o; 0,75; 0,5; 0,25; 0,12 II 0. npOBeAeH0 CpaBHeHAe pe3yJIbTaTOB AJIH X = 0 El 1 C AaHHbIMII, IIOJIyqeHHbIMH MeTOnOM HnB. nOHaJIbHbIe IlapUMaJIbHble IIJIOTHOCTM 3JIeK-TPOHHMX COCTOHHMfi (n3c) HeMeTaJIJlOB OTJIH9aIOTCH OT CO0TBeTCTBYH)IIlLlX n3c CTeXIIO-MeTpMW?CKMX NbC II NbN. 3aBklCMMOCTb H 3 c Ha YpOBHe &pMH OT X HOppeJlMpyeT C 3aBMCHMOCTbIO OT X TeMIIepaTypbI IlepeXOHa B CBepXIIpOBOnH~ee COCTOHHMe. noTeHuHana II c yseToM paccemm Ha orpaHmeHHoM wcne aToMoB paccvnTaHa ~J I~K -

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In terms of the multiple scattering theory using the crystalline muffin-tin potential and taking into account the local distortion of the lattice the electronic structure of stoichiometric and nonstoichiometric molybdenum carbides MoCl-, for x = 0, 0.17, and 0.33 in cubic NaCl and hexagonal WC crystal structures is calculated. As the concentration of the carbon vacancies increases "atomization" of 2p states of carbon and growth of the Mo-Mo interaction take place. At the same time a new maximum of the electron density of states (DOS)

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