Bis(diphenylphosphino)methane Dioxide Complexes of Lanthanide Trichlorides: Synthesis, Structures and Spectroscopy

Bis(diphenylphosphino)methane dioxide (dppmO2) forms eight-coordinate cations [M(dppmO2)4]Cl3 (M = La, Ce, Pr, Nd, Sm, Eu, Gd) on reaction in a 4:1 molar ratio with the appropriate LnCl3 in ethanol. Similar reaction in a 3:1 ratio produced seven-coordinate [M(dppmO2)3Cl]Cl2 (M = Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb), whilst LuCl3 alone produced six-coordinate [Lu(dppmO2)2Cl2]Cl. The complexes have been characterised by IR, 1H and 31P{1H}-NMR spectroscopy. X-ray structures show that [M(dppmO2)4]Cl3 (M = Ce, Sm, Gd) contain square antiprismatic cations, whilst [M(dppmO2)3Cl]Cl2 (M = Yb, Dy, Lu) have distorted pentagonal bipyramidal structures with apical Cl. The [Lu(dppmO2)2Cl2]Cl has a cis octahedral cation. The structure of [Yb(dppmO2)3(H2O)]Cl3·dppmO2 is also reported. The change in coordination numbers and geometry along the series is driven by the decreasing lanthanide cation radii, but the chloride counter anions also play a role.

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2-(3,5-Dimethyl-1H-pyrazol-1-yl)thiazolo[4,5-b]pyridine

Molbank ◽

10.3390/m1077 ◽

2019 ◽

Vol 2019 (3) ◽

pp. M1077

Author(s):

Lan ◽

Zheng ◽

Wang

Keyword(s):

Nmr Spectroscopy ◽

Single Crystal ◽

1H Nmr ◽

Structure Determination ◽

1H Nmr Spectroscopy ◽

Pyrazole Ring ◽

Hydrogen Atoms ◽

X Ray ◽

X Ray Crystallography

The compound 2-(3,5-dimethyl-1H-pyrazol-1-yl)thiazolo[4,5-b]pyridine (1) was synthesized with a yield of 71% by the reaction of 1-(thiazolo[4,5-b]pyridine-2-yl)hydrazine and acetylacetone. The structure was characterized by a single-crystal X-ray structure determination as well as 1H and 13C{1H} NMR spectroscopy. X-ray crystallography on 1 confirms the molecule consists of a pyridine–thiazole moiety and the pyrazole ring, and all non-hydrogen atoms are planar.

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ChemInform Abstract: Molecular Recognition of Polar Neutral Molecules by Metallomacrocycles: Synthesis, 1H NMR Spectroscopy, X-Ray Structure, Electrochemistry, and ab initio Calculations.

ChemInform ◽

10.1002/chin.199211217 ◽

2010 ◽

Vol 23 (11) ◽

pp. no-no

Author(s):

A. R. VAN DOORN ◽

R. SCHAAFSTRA ◽

M. BOS ◽

S. HARKEMA ◽

J. VAN EERDEN ◽

...

Keyword(s):

Nmr Spectroscopy ◽

Molecular Recognition ◽

Ab Initio Calculations ◽

Ab Initio ◽

1H Nmr ◽

1H Nmr Spectroscopy ◽

X Ray

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The Conformation of Some 1,6-Disulfide-Bridged D-Hexopyranoses

Australian Journal of Chemistry ◽

10.1071/ch04291 ◽

2005 ◽

Vol 58 (3) ◽

pp. 199 ◽

Cited By ~ 3

Author(s):

Ethan D. Goddard-Borger ◽

Brian W. Skelton ◽

Robert V. Stick ◽

Allan H. White

Keyword(s):

Nmr Spectroscopy ◽

Single Crystal ◽

1H Nmr ◽

1H Nmr Spectroscopy ◽

Similar Investigation ◽

X Ray ◽

X Ray Crystallography ◽

Structure Determinations ◽

Derivatives Of

The use of 1H NMR spectroscopy, in tandem with X-ray crystallography, has cast light on the conformation of the 1,6-disulfide-bridged derivatives of d-gluco-, d-manno-, d-allo-, d-galacto-, and d-talo-pyranose. A similar investigation was performed on the thiosulfinate derived from the d-gluco disulfide. Single-crystal X-ray structure determinations are reported for (1S,5S,6S,7S,8R)-6,7,8-tribenzoyloxy-9-oxa-2,3-dithiabicyclo[3.3.1]nonane, (1S,5S,6S,7R,8R)-6,7,8-tribenzoyloxy-9-oxa-2,3-dithiabicyclo[3.3.1]nonane, and (1S,2S,5S,6S,7S,8R)-6,7,8-triacetoxy-9-oxa-2,3-dithiabicyclo[3.3.1]nonane 2-oxide.

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Tautomerism of azo dyes in the solid state studied by 15N, 14N, 13C and 1H NMR spectroscopy, X-ray diffraction and quantum-chemical calculations

Dyes and Pigments ◽

10.1016/j.dyepig.2020.108342 ◽

2020 ◽

Vol 178 ◽

pp. 108342 ◽

Cited By ~ 1

Author(s):

Kateřina Bártová ◽

Ivana Císařová ◽

Antonín Lyčka ◽

Martin Dračínský

Keyword(s):

Solid State ◽

Nmr Spectroscopy ◽

Quantum Chemical Calculations ◽

1H Nmr ◽

Azo Dyes ◽

Quantum Chemical ◽

1H Nmr Spectroscopy ◽

X Ray Diffraction ◽

X Ray

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Study of hydrogen bonding in 1-ethyl-2-methyl-4-oxo-1,4-dihydro-pyridin-3-yloxyethanoic acid and 3-(1,2-diethyl-4-oxo-1,4-dihydropyridin-3-yloxy)propanoic acid by 1H NMR spectroscopy and X-ray crystallography

Journal of the Chemical Society Perkin Transactions 2 ◽

10.1039/p29930000451 ◽

1993 ◽

pp. 451 ◽

Cited By ~ 1

Author(s):

Paul S. Dobbin ◽

Robert C. Hider ◽

Safia K. Rizvi ◽

Kim L. Maki ◽

Dick van der Helm

Keyword(s):

Hydrogen Bonding ◽

Nmr Spectroscopy ◽

1H Nmr ◽

1H Nmr Spectroscopy ◽

Propanoic Acid ◽

X Ray ◽

X Ray Crystallography

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ChemInform Abstract: Study of Hydrogen Bonding in 1-Ethyl-2-methyl-4-oxo-1,4-dihydropyridin- 3-yloxyethanoic Acid and 3-(1,2-Diethyl-4-oxo-1,4-dihydropyridin-3- yloxy)propanoic Acid by 1H-NMR Spectroscopy and X-Ray Crystallography

ChemInform ◽

10.1002/chin.199322071 ◽

2010 ◽

Vol 24 (22) ◽

pp. no-no ◽

Cited By ~ 1

Author(s):

P. S. DOBBIN ◽

R. C. HIDER ◽

S. K. RIZVI ◽

K. L. MAKI ◽

D. VAN DER HELM

Keyword(s):

Hydrogen Bonding ◽

Nmr Spectroscopy ◽

1H Nmr ◽

1H Nmr Spectroscopy ◽

Propanoic Acid ◽

X Ray ◽

X Ray Crystallography

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Characterisation of PEGylated PLGA nanoparticles comparing the nanoparticle bulk to the particle surface using UV/vis spectroscopy, SEC, 1H NMR spectroscopy, and X-ray photoelectron spectroscopy

Applied Surface Science ◽

10.1016/j.apsusc.2015.04.071 ◽

2015 ◽

Vol 347 ◽

pp. 378-385 ◽

Cited By ~ 21

Author(s):

S. Spek ◽

M. Haeuser ◽

M.M. Schaefer ◽

K. Langer

Keyword(s):

Nmr Spectroscopy ◽

1H Nmr ◽

Photoelectron Spectroscopy ◽

1H Nmr Spectroscopy ◽

Particle Surface ◽

Plga Nanoparticles ◽

X Ray ◽

Vis Spectroscopy

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Encapsulation of L-Valine, D-Leucine and D-Methionine by Cucurbit[8]uril

CrystEngComm ◽

10.1039/d1ce01513c ◽

2022 ◽

Author(s):

Zenghui Zhang ◽

Rui-Lian Lin ◽

Xiangyun Yu ◽

Li-Xia Chen ◽

Zhu Tao ◽

...

Keyword(s):

Aqueous Solution ◽

Solid State ◽

Nmr Spectroscopy ◽

1H Nmr ◽

1H Nmr Spectroscopy ◽

Binding Interactions ◽

X Ray ◽

X Ray Crystallography

The binding interactions of cucurbit[8]uril (Q[8]) with L-Valine, D-Leucine, and D-Methionine, both in aqueous solution and solid state, have been studied by 1H NMR spectroscopy and X-ray crystallography. 1H NMR...

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