Silane compounds as a constituent material of luminescent device are described, which are represented by formula (1), luminescent device materials which comprise said compounds and luminescent devices which comprise said materials to acquire high luminous efficiency and high durability: ##STR1## wherein R.sup.1 represents an alkyl group, an aryl group, a heteroaryl group or an alkynyl group, and each of Ar.sup.11, Ar.sup.12 and Ar.sup.13 represents a heteroaryl group.

Los compuestos del silane como material constitutivo del dispositivo luminiscente se describen, que son representados por el fórmula (1), los materiales luminiscentes del dispositivo que abarcan los compuestos dichos y los dispositivos luminiscentes que abarcan los materiales dichos para adquirir alta eficacia luminosa y alta durabilidad: ## del ## STR1 en donde R.sup.1 representa a grupo alkyl, un grupo aryl, un grupo del heteroaryl o un grupo del alkynyl, y cada uno de Ar.sup.11, Ar.sup.12 y Ar.sup.13 representa a grupo del heteroaryl.

 
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