K f f t t MOTICC F o rm a tio n C o n s t a n ts o l th e C o m p le x S p e c ie * F o r m e d b y i n t e r a c t i o n of R a r e -E a rth Nit* i lo t r i s .c e t a t e C o m p ie x e e w ith an E q u iv a le n t A m o u n t nf B a se * « ASIM K . G U P T A a n d JA C K E . P O W E L L I n s titu te fo r A to m ic R e s e a r c h a n d D e p a r tm e n t of C h e m i s t r y Io w a S ta te U n i v e r s i ty , A m e s , Iow a A b s t r a c t --T h e f o r m a tio n c o n s t a n t s o f th

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