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Multistep self-assembly of heteroleptic magnesium and sodium-magnesium benzamidinate complexes
No full textReaction of the magnesium bis-alkyl Mg(CH2SiMe3)(2) and the sodium amide NaHMDS (where HMDS = N(SiMe3)(2)) with benzonitrile yields the homometallic heteroleptic complex [PhC(NSiMe3)(2)Mg{mu-NC(CH2SiMe3)Ph}](2) (1). It appears that at least six independent reactions must have occurred in this one-pot reaction to arrive at this mixed benzamidinate ketimido product. Two benzonitrile solvated derivatives of Mg(CH2SiMe3)(2) (5a and 5b) have been synthesized, with 5a crystallographically characterized as a centrosymmetric (MgC)(2) cyclodimer. When, the components of 5a are allowed to react for longer, partial addition of the Mg-alkyl unit across the C N triple bond occurs to yield the trimeric species (Me3SiCH2)(2)Mg-3[mu-N=C(CH2SiMe3)Ph](4)center dot 2N CPh (6), with bridging ketimido groups and terminal alkyl groups. Finally, using the same starting materials as that which produced 1, but altering their order of addition, a magnesium bis-alkyl unit is inserted into the Na-N bonds of a benzamidinate species to yield a new sodium magnesiate complex, PhC(NSiMe3)(2)Mg(mu-CH2SiMe3)(2)Na center dot 2TMEDA (7). The formation of 7 represents a novel (insertion) route to mixed-metal species of this kind and is the first Such example to contain a bidentate terminal anion attached to the divalent metal center. All new species are characterized by H-1 and C-13 NMR spectroscopy and where appropriate by IR spectroscopy. The solid-state structures of complexes 1, 5a, and 7 have also been determined and are disclosed within
Santa Fe (ATSF) 3208
No full textA photograph print showing Santa Fe 3208, 2-8-2 (BLW, class 3160), by water tank, So. Shawnee, OK
Santa Fe (ATSF) 3208
No full textA photograph postcard showing Santa Fe 3208, 2-8-2, on southbound freight extra, near Briton, OK, 52 cars, 40 mph
Mathematics Calculus 3208 Curriculum Guide 2013
No full textMathematics Calculus 3208 Curriculum Guide 201
Block Card 3208 Cambridge Street
No full textThis image was produced by the Auditor's Office in Lucas County, Ohio for tax assessment purposes. Associated dates are approximate. Descriptive terms related to this photograph include: Gable front houses | Dwelling | 3208 Cambridge Street (Toledo, Ohio) | Cottage Park Addition (Toledo, Ohio) | Toledo Olde Towne (Toledo, Ohio) | Folk House Styl
Block Card 3208 Dolores Avenue
No full textThis image was produced by the Auditor's Office in Lucas County, Ohio for tax assessment purposes. Associated dates are approximate. Descriptive terms related to this photograph include: Cape Cod Style | 3208 Dolores Avenue (Toledo, Ohio) | dwelling - Ohio - Toledo | Dorthy Place Addition (Toledo, Ohio) | Scott Park Area (Toledo, Ohio
Block Card 3208 Elmview Avenue
No full textThis image was produced by the Auditor's Office in Lucas County, Ohio for tax assessment purposes. Associated dates are approximate. Descriptive terms related to this photograph include: Ranch Style | Dwelling | 3208 Elmview Avenue (Toledo, Ohio) | Elmhurst Park Addition (Toledo, Ohio) | Deveaux Area (Toledo, Ohio) | West Toledo (Toledo, Ohio
Block Card 3208 Goddard Road
No full textThis image was produced by the Auditor's Office in Lucas County, Ohio for tax assessment purposes. Associated dates are approximate. Descriptive terms related to this photograph include: Tudor Revival Style | Dwelling | 3208 Goddard Road (Toledo, Ohio) | Carskaddon Place Addition | Deveaux Area (Toledo, Ohio) | West Toledo (Toledo, Ohio
Block Card 3208 Cottage Avenue
No full textThis image was produced by the Auditor's Office in Lucas County, Ohio for tax assessment purposes. Associated dates are approximate. Descriptive terms related to this photograph include: End Gabled | Dwelling | 3208 Cottage Avenue (Toledo, Ohio) | West Toledo Area (Toledo, Ohio) | Lawndale Addition (Toledo, Ohio) | Folk House Styl
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