PMID- 20631949 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20101028 LR - 20100715 IS - 1477-9234 (Electronic) IS - 1477-9226 (Linking) VI - 39 IP - 29 DP - 2010 Aug 7 TI - Syntheses and structures of bora-amidinate lanthanide(III) complexes. PG - 6677-81 LID - 10.1039/c001966f [doi] AB - The use and coordination modes of the dianionic bora-amidinate ligand in lanthanide(III) chemistry is explored. Synthetic routes to complexes of the type (DIPP)NBN-LnR (Ln = lanthanide, (DIPP)NBN = HB[N(2,6-iPr(2)-phenyl)](2), R = an amide or benzylide group) have been developed. The reaction of (DIPP)NBN-H(2) with (DMA)(3)Sm (DMA = 2-Me(2)N-benzyl) gave dark-red crystals of (DIPP)NBN-Sm(DMA) in 68% yield. The yttrium analogue, (DIPP)NBN-Y(DMA), was prepared similarly (yellow crystals, 58% yield). The reaction of (DIPP)NBN-Sm(DMA) with (Me(3)Si)(2)NH gave (DIPP)NBN-SmN(SiMe(3))(2).(THF)(2) (yellow crystals, 54% yield). Crystal structure determinations of (DIPP)NBN-Sm(DMA) and (DIPP)NBN-Y(DMA) revealed dimeric complexes that are held together by LnDIPP interactions. The complex (DIPP)NBN-SmN(SiMe(3))(2).(THF)(2) crystallized as a monomer. NMR investigations of [(DIPP)NBN-Y(DMA)](2) in benzene indicate that it is also dimeric in solution. The addition of THF resulted in its dissociation into monomeric units of (DIPP)NBN-Y(DMA).(THF)(x). FAU - Harder, Sjoerd AU - Harder S AD - Anorganische Chemie, Universitat Duisburg-Essen, Universitatsstrasse 5, 45117, Essen, Germany. sjoerd.harder@uni-due.de LA - eng PT - Journal Article DEP - 20100325 PL - England TA - Dalton Trans JT - Dalton transactions (Cambridge, England : 2003) JID - 101176026 EDAT- 2010/07/16 06:00 MHDA- 2010/07/16 06:01 CRDT- 2010/07/16 06:00 PHST- 2010/07/16 06:00 [entrez] PHST- 2010/07/16 06:00 [pubmed] PHST- 2010/07/16 06:01 [medline] AID - 10.1039/c001966f [doi] PST - ppublish SO - Dalton Trans. 2010 Aug 7;39(29):6677-81. doi: 10.1039/c001966f. Epub 2010 Mar 25.