The syntheses of the alkanolamine N(CHCMeOH)(CMeCHOH) (1), of the stannatrane N(CHCMeO)(CMeCHO)SnO-t-Bu (2), and of the trinuclear tin oxocluster 3 consisting of the two isomers [(μ-O)(O-t-Bu){Sn(OCHCMe)(OCMeCH)N}] (3a) and [(μ-O)(μ-O-t-Bu){Sn(OCHCMe)(OCMeCH)N}] (3b) as well as the isolation of a few crystals of the hexanuclear tin oxocluster [LSnOSn(OH)LSnOH] [L = N(CHCMeO)(CMeCHO)] (4) are reported. The compounds were characterized by H,C, N, andSn (1-3) nuclear magnetic resonance and infrared spectroscopy, electrospray ionization mass spectrometry, and single-crystal X-ray diffraction analysis (1-4). A graph set analysis was performed for compound 1. The relative energies of 3a and 3b were estimated by density functional theory calculations that show that the energy differences are small.

A set of neutral and ionic ruthenium arene trichlorostannyl complexes are reported herein. The tin(II) compounds L 1 SnCl {1; L 1 = [2-(CH 2 NEt 2 )-4,6-(tBu) 2 C 6 H 2 ] -} and [L 2 SnCl][SnCl 3 ] {2; L 2 = 2,6-[(CH 3 )C=N(C 6 H 3 -2,6-iPr 2 ) 2 ]C 5 H 3 N} showed a rather different reactivity towards the ruthenium complex [(η 6cymene)RuCl] 2 (η-Cl) 2 . As a consequence, the neutral complex [Ru(η 6 -cymene)(L 1 SnCl)Cl 2 ] (4) and the ionic compound [L 2 SnCl][Ru(η 6 -cymene)(SnCl 3 ) 2 Cl] (8) were isolated. The insertion reaction of 4 with SnCl 2 provided the neutral trimetallic ruthenium complex [Ru(η 6 -cymene)(L 1 SnCl)(SnCl 3 )Cl] (6). Analo- [a]

The syntheses of the novel amino alcohols NH(CHCMeOH)(CMeCHOH) (1) and N(CHCMeOH)(CMeCHOH)(CHCHOH) (2) as well as the stannatranes N(CHCMeO)(CMeCHO)(CHCHO)SnX (3, X = Ot-Bu), N(CHCMeO)SnOC(O)CHO, 4, and germatranes N(CHCMeO)(CMeCHO)(CHCHO)GeX (5, X = OEt; 6, X = Br) are reported. The compounds were characterized by H,C (1-6), Sn (3, 4), andN (2, 3, 5) NMR and IR spectroscopy, electrospray ionization mass spectrometry, and single crystal X-ray diffraction analysis. Graphset analyses were performed for compounds 1 and 2. Detailed NMR spectroscopic studies including variable temperature H (3, 5, 6) andSn (3, 4) DOSY experiments reveal the stannatrane 3 being involved in a monomer-dimer equilibrium. Both the stannatranes 3 and 4 as well as the germatranes 5 and 6 show Λ ⇌ Δ isomerization of the atrane cages in solution.

The novel phosphonyl-substituted ferrocene derivatives [Fe(η(5) -Cp)(η(5) -C5 H3 {P(O)(O-iPr)2 }2 -1,2)] (Fc(1,2) ) and [Fe{η(5) -C5 H4 P(O)(O-iPr)2 }2 ] (Fc(1,1') ) react with SnCl2 , SnCl4 , and SnPh2 Cl2 , giving the corresponding complexes [(Fc(1,2) )2 SnCl][SnCl3 ] (1), [{(Fc(1,1') )SnCl2 }n ] (2), [(Fc(1,1') )SnCl4 ] (3), [{(Fc(1,1') )SnPh2 Cl2 }n ] (4), and [(Fc(1,2) )SnCl4 ] (5), respectively. The compounds are characterized by elemental analyses, (1) H, (13) C, (31) P, (119) Sn NMR and IR spectroscopy, (31) P and (119) Sn CP-MAS NMR spectroscopy, cyclovoltammetry, electrospray ionization mass spectrometry, and single-crystal as well as powder X-ray diffraction analyses. The experimental work is accompanied by DFT calculations, which help to shed light on the origin for the different reaction behavior of Fc(1,1') and Fc(1,2) towards tin(II) chloride.

Herein, we report the syntheses of silicon- and tin-containing open-chain and eight-membered-ring compounds Me2 Si(CH2 SnMe2 X)2 (2, X=Me; 3, X=Cl; 4, X=F), CH2 (SnMe2 CH2 I)2 (7), CH2 (SnMe2 CH2 Cl)2 (8), cyclo-Me2 Sn(CH2 SnMe2 CH2 )2 SiMe2 (6), cyclo-(Me2 SnCH2 )4 (9), cyclo-Me(2-n) Xn Sn(CH2 SiMe2 CH2 )2 SnXn Me(2-n) (5, n=0; 10, n=1, X=Cl; 11, n=1, X=F; 12, n=2, X=Cl), and the chloride and fluoride complexes NEt4 [cyclo- Me(Cl)Sn(CH2 SiMe2 CH2 )2 Sn(Cl)Me⋅F] (13), PPh4 [cyclo-Me(Cl)Sn(CH2 SiMe2 CH2 )2 Sn(Cl)Me⋅Cl] (14), NEt4 [cyclo-Me(F)Sn(CH2 SiMe2 CH2 )2 Sn(F)Me⋅F] (15), [NEt4 ]2 [cyclo-Cl2 Sn(CH2 SiMe2 CH2 )2 SnCl2 ⋅2 Cl] (16), M[Me2 Si(CH2 Sn(Cl)Me2 )2 ⋅Cl] (17 a, M=PPh4 ; 17 b, M=NEt4 ), NEt4 [Me2 Si(CH2 Sn(Cl)Me2 )2 ⋅F] (18), NEt4 [Me2 Si(CH2 Sn(F)Me2 )2 ⋅F] (19), and PPh4 [Me2 Si(CH2 Sn(Cl)Me2 )2 ⋅Br] (20). The compounds were characterised by electrospray mass-spectrometric, IR and (1) H, (13) C, (19) F, (29) Si, and (119) Sn NMR spectroscopic analysis, and, except for 15 and 18, single-crystal X-ray diffraction studies.