Stabilization of Lithium Borohydride with Nitrogen Donor, Chelating Ligands. Syntheses and Solid State Structures of [HC(3,5-Me2pz)3]Li(η3-BH4), {[H2C(3,5-Me2pz)2]Li(μ-η3-BH4)}2, and {[4,4‘-Me2bipy]Li(μ-η3-BH4)}2(pz = pyrazolyl, bipy = bipyridyl)

1997 ◽  
Vol 36 (27) ◽  
pp. 6266-6269 ◽  
Author(s):  
Daniel L. Reger ◽  
James E. Collins ◽  
Michael A. Matthews ◽  
Arnold L. Rheingold ◽  
Louise M. Liable-Sands ◽  
...  
Keyword(s):  
Solid State ◽  
Chelating Ligands ◽  
Lithium Borohydride ◽  
Nitrogen Donor ◽  
Solid State Structures

scholarly journals Mono- and Dinuclear Aluminium Complexes Derived from Biguanide and Carbothiamide Ligands

Inorganics ◽  
2021 ◽  
Vol 9 (7) ◽  
pp. 52
Author(s):  
Maximilian Dehmel ◽  
Helmar Görls ◽  
Robert Kretschmer
Keyword(s):  
Coordination Chemistry ◽  
Solid State ◽  
Coordination Polymer ◽  
Diffraction Analysis ◽  
Crucial Role ◽  
Chelating Ligands ◽  
X Ray Diffraction ◽  
One Dimensional ◽  
X Ray ◽  
Solid State Structures

Dianionic N,N-chelating ligands play a crucial role in coordination chemistry, but reports on related complexes remain limited to certain types of ligands. In here, the reactions of two diprotic ligands, i.e., a biguanide and a carbothiamide, with trimethylaluminium, are reported, which give rise to mono- and dinuclear aluminium(III) complexes. In addition, single deprotonation of the diprotic biguanide using potassium bis(trimethylsilyl)amide gives rise to a one-dimensional coordination polymer. All complexes have been fully characterized, and their solid-state structures were determined by single crystal X-ray diffraction analysis.

Synthesis and crystal structure analyses of tri-substituted guanidine-based copper(II) complexes

2021 ◽  
Vol 76 (3-4) ◽  
pp. 193-199
Author(s):  
Muhammad Said ◽  
Sadia Rehman ◽  
Muhammad Ikram ◽  
Hizbullah Khan ◽  
Carola Schulzke
Keyword(s):  
Crystal Structure ◽  
Solid State ◽  
Molecular Structures ◽  
Hydroxyl Groups ◽  
Synthesis And Crystal Structure ◽  
Pyramidal Geometry ◽  
Tautomeric Forms ◽  
Square Planar ◽  
Nitrogen Donor ◽  
Square Pyramidal Geometry

Abstract Three guanidine-derived tri-substituted ligands viz. N-pivaloyl-N′,N″-bis-(2-methoxyphenyl)guanidine (L1), N-pivaloyl-N′-(2-methoxyphenyl)-N″-phenylguanidine (L2) and N-pivaloyl-N′-(2-methoxyphenyl)-N″-(2-tolyl)guanidine (L3) were reacted with Cu(II) acetate to produce the corresponding complexes. The significance of the substituent on N″ for the resulting molecular structures and their packing in the solid state has been studied with respect to the structural specifics of the corresponding Cu(II) complexes. The key characteristic of the guanidine-based metal complexation with Cu(II) is the formation of an essentially square planar core with an N2O2 donor set. As an exception, in the complex of L1, the substituent’s methoxy moiety also interacts with the Cu(II) center to generate a square-pyramidal geometry. The hydroxyl groups of the imidic acid tautomeric forms of L1–L3, in addition to N″, are also bonded to Cu(II) in all three complexes rather than the nitrogen donor of the guanidine motif.

Synthesis and solid state structures of macromolecular cylindrical brushes with varying side chain length

Polymer ◽  
2004 ◽  
Vol 45 (12) ◽  
pp. 4009-4015 ◽  
Author(s):  
Bin Zhang ◽  
Shanju Zhang ◽  
Lidia Okrasa ◽  
Tadeusz Pakula ◽  
Tim Stephan ◽  
...  
Keyword(s):  
Solid State ◽  
Chain Length ◽  
Side Chain ◽  
Side Chain Length ◽  
Solid State Structures

Intramolecular London Dispersion Interaction Effects on Gas-Phase and Solid-State Structures of Diamondoid Dimers

2017 ◽  
Vol 139 (46) ◽  
pp. 16696-16707 ◽  
Author(s):  
Andrey A. Fokin ◽  
Tatyana S. Zhuk ◽  
Sebastian Blomeyer ◽  
Cristóbal Pérez ◽  
Lesya V. Chernish ◽  
...  
Keyword(s):  
Solid State ◽  
Gas Phase ◽  
Interaction Effects ◽  
Dispersion Interaction ◽  
London Dispersion ◽  
Solid State Structures
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