Assertion: chalcopyrite | /r/HasProperty | ii–iv–v
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Source sentences:
text: Employing the generalisation of Van Vechten's cavity model, formation energies of neutral point defects in pyrites (FeS 2 , RuS 2 ), chalcopyrites (II–IV–V 2 and I–III–VI 2 ) as well as molybdenites (MoS 2 , WS 2 ) have been estimated.