SYNTHESIS, X-RAY STRUCTURE AND LUMINESCENT PROPERTIES OF SM3+ TERNARY COMPLEX WITH NOVEL HETEROCYCLIC Β-DIKETONE AND 1,10-PHENANTHROLINE (PHEN) ArticleTaydakov I.V., Zaitsev B.E., Krasnoselskiy S.S., Starikova Z.A.Journal of Rare Earths. Vol. 29. 2011. P.. 719-722