About: Structure and properties of lithium n-butyl amidinates

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Description	Lithium n-butyl amidinates (formally lithium salts of N', N-disubstituted amidoimides of pentanoic acid) with various substituents were prepared and characterized in solution by (1)H, (7)Li, (13)C and (15)N NMR spectra parameters in C(6)D(6), THF-d(8) and Et(2)O-d(10). The characteristic spectral parameters were compared with parent carbodiimides and amidines prepared by hydrolysis, where large solvent effects were described. Five of studied compounds were studied by X-ray diffraction techniques in the solid state. Lithium n-butyl amidinates containing less bulky substituents like isopropyl or cyclohexyl crystallize with Et(2)O or THF as centrosymmetric dimers with mutually parallel amidinate moieties. The lithium N,N'-bis[2,6-di(propan-2-yl) phenyl]n-butylamidinate crystallizes from Et(2)O solution as an asymmetric dimer. The first unit is composed by one ligand coordinated to one of lithium atoms. The lithium atom is also coordinated by one of the nitrogen atoms of the second ligand. The second nitrogen atom of the same ligand is coordinated to the second lithium atom which is also connected to the Et(2)O molecule and the aromatic ring of the ligand in a eta(3)-fashion. The same compound crystallizes from the THF solution as a monomeric bis-tetrahydrofuranate. Lithium n-butyl amidinates (formally lithium salts of N', N-disubstituted amidoimides of pentanoic acid) with various substituents were prepared and characterized in solution by (1)H, (7)Li, (13)C and (15)N NMR spectra parameters in C(6)D(6), THF-d(8) and Et(2)O-d(10). The characteristic spectral parameters were compared with parent carbodiimides and amidines prepared by hydrolysis, where large solvent effects were described. Five of studied compounds were studied by X-ray diffraction techniques in the solid state. Lithium n-butyl amidinates containing less bulky substituents like isopropyl or cyclohexyl crystallize with Et(2)O or THF as centrosymmetric dimers with mutually parallel amidinate moieties. The lithium N,N'-bis[2,6-di(propan-2-yl) phenyl]n-butylamidinate crystallizes from Et(2)O solution as an asymmetric dimer. The first unit is composed by one ligand coordinated to one of lithium atoms. The lithium atom is also coordinated by one of the nitrogen atoms of the second ligand. The second nitrogen atom of the same ligand is coordinated to the second lithium atom which is also connected to the Et(2)O molecule and the aromatic ring of the ligand in a eta(3)-fashion. The same compound crystallizes from the THF solution as a monomeric bis-tetrahydrofuranate. (en)
Title	Structure and properties of lithium n-butyl amidinates Structure and properties of lithium n-butyl amidinates (en)
skos:prefLabel	Structure and properties of lithium n-butyl amidinates Structure and properties of lithium n-butyl amidinates (en)
skos:notation	RIV/00216275:25310/11:39892403!RIV12-GA0-25310___
http://linked.open...avai/riv/aktivita	P S Z
http://linked.open...avai/riv/aktivity	P(GA104/09/0829), S, Z(MSM0021627501)
http://linked.open...iv/cisloPeriodika	11-12
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Růžička, Aleš Padělková, Zdeňka Chlupatý, Tomáš
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Pardubice / Fakulta chemicko-technologická
http://linked.open...dnocenehoVysledku	232787
http://linked.open...ai/riv/idVysledku	RIV/00216275:25310/11:39892403
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	XRD; NMR; Amidinate Lithium (en)
http://linked.open.../riv/klicoveSlovo	Amidinate Lithium NMR XRD
http://linked.open...odStatuVydavatele	CH - Švýcarská konfederace
http://linked.open...ontrolniKodProRIV	[B85BBBA028A9]
http://linked.open...i/riv/nazevZdroje	Journal of Organometallic Chemistry
http://linked.open...in/vavai/riv/obor	CA
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Use of Carbon Dioxide as C1 Building Block for Organic Compounds Catalyzed by Metal Containing Compounds
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	696
http://linked.open...iv/tvurceVysledku	Padělková, Zdeňka Růžička, Aleš Lyčka, Antonín Chlupatý, Tomáš
http://linked.open...ain/vavai/riv/wos	000290022200011
http://linked.open...n/vavai/riv/zamer	Aimed preparation of special compounds and materials and investigation of their physical and chemical properties and supramolecular structures
issn	0022-328X
number of pages	9 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.jorganchem.2011.02.026
http://localhost/t...ganizacniJednotka	25310

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