Synthesis, spectra and crystal structure of a CuII complex exhibiting novel two-dimensional joint-ladder like hydrogen-bonding pattern with an amino-acid type diazamesocyclic ligand

2004 ◽  
Vol 692 (1-3) ◽  
pp. 195-199 ◽  
Author(s):  
Miao Du ◽  
Xian-He Bu
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Amino Acid ◽  
Amino Acid Type ◽  
Two Dimensional ◽  
Hydrogen Bonding Pattern ◽  
Acid Type

scholarly journals Crystal structure of a trigonal polymorph of aquadioxidobis(pentane-2,4-dionato-κ2 O,O′)uranium(VI)

2022 ◽  
Vol 78 (1) ◽  
Author(s):  
Alejandro Hernandez ◽  
Indranil Chakraborty ◽  
Gabriela Ortega ◽  
Christopher J. Dares
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Water Molecule ◽  
Equatorial Plane ◽  
Title Compound ◽  
Uranium Atom ◽  
Intermolecular Hydrogen Bonding ◽  
Two Dimensional ◽  
Asymmetric Unit ◽  
Acta Cryst

The title compound, [UO2(acac)2(H2O)] consists of a uranyl(VI) unit ([O=U=O]2+) coordinated to two monoanionic acetylacetonate (acac, C5H7O2) ligands and one water molecule. The asymmetric unit includes a one-half of a uranium atom, one oxido ion, one-half of a water molecule and one acac ligand. The coordination about the uranium atom is distorted pentagonal–bipyramidal. The acac ligands and Ow atom comprise the equatorial plane, while the uranyl O atoms occupy the axial positions. Intermolecular hydrogen bonding between complexes results in the formation of two-dimensional hexagonal void channels along the c-axis direction with a diameter of 6.7 Å. The monoclinic (P21/c space group) polymorph was reported by Alcock & Flanders [(1987). Acta Cryst. C43, 1480–1483].

scholarly journals Emulsifying Potency of New Amino Acid-Type Surfactant. (1). O/W Emulsions.

2001 ◽  
Vol 50 (11) ◽  
pp. 847-855 ◽  
Author(s):  
Junichi KOUCHI ◽  
Tatsuru TABOHASHI ◽  
Shoko YOKOYAMA ◽  
Fuminori HARUSAWA ◽  
Aritomo YAMAGUCHI ◽  
...  
Keyword(s):  
Amino Acid ◽  
Amino Acid Type ◽  
Acid Type

Solution properties of amino acid-type new surfactant

2001 ◽  
Vol 20 (1) ◽  
pp. 79-86 ◽  
Author(s):  
Tatsuru Tabohashi ◽  
Kazuhiko Tobita ◽  
Kazutami Sakamoto ◽  
Junichi Kouchi ◽  
Shoko Yokoyama ◽  
...  
Keyword(s):  
Amino Acid ◽  
Amino Acid Type ◽  
Solution Properties ◽  
Acid Type

Synthesis of new amino acid-type amphoteric surfactants from tall oil fatty acid

2001 ◽  
Vol 47 (6) ◽  
pp. 470-475 ◽  
Author(s):  
Shi-Fa Wang ◽  
Takeshi Furuno ◽  
Zhi Cheng
Keyword(s):  
Fatty Acid ◽  
Amino Acid ◽  
Amino Acid Type ◽  
Tall Oil ◽  
Acid Type ◽  
Tall Oil Fatty Acid ◽  
Amphoteric Surfactants

scholarly journals Crystal structure of bis(acetylacetonato-κ2O,O′)(tetrahydrofuran-κO)(trifluoromethanesulfonato-κO)iron(III)

2015 ◽  
Vol 71 (10) ◽  
pp. 1165-1168
Author(s):  
Casseday P. Richers ◽  
Jeffery A. Bertke ◽  
Thomas B. Rauchfuss
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Site Occupancy ◽  
Title Complex ◽  
Two Dimensional ◽  
Hydrogen Bonding Interactions ◽  
Octahedral Environment ◽  
Distorted Octahedral ◽  
Length Range ◽  
A Site

The mononuclear title complex, [Fe(CF3O3S)(C5H7O2)2(C4H8O)] or [Fe(acac)2(OTf)(THF)] (acac = acetylacetonate; OTf = trifluoromethanesulfonate; THF = tetrahydrofuran), (I), consists of one six-coordinate Fe3+atom in a slightly distorted octahedral environment [Fe—O bond-length range = 1.9517 (11)–2.0781 (11) Å]. The triflate ligand was found to be disordered over two sets of sites, with a site-occupancy ratio of 0.622 (16):0.378 (16). Weak intermolecular C—H...O and C—H...F hydrogen-bonding interactions generate a two-dimensional supramolecular structure lying parallel to (100). This is only the second crystal structure reported of a mononuclear bis(acetylacetonato)iron(III) complex.

Amino-acid Type Identification in 15N-HSQC Spectra by Combinatorial Selective 15N-labelling

2006 ◽  
Vol 34 (1) ◽  
pp. 13-21 ◽  
Author(s):  
Peter S. C. Wu ◽  
Kiyoshi Ozawa ◽  
Slobodan Jergic ◽  
Xun-Cheng Su ◽  
Nicholas E. Dixon ◽  
...  
Keyword(s):  
Amino Acid ◽  
Amino Acid Type ◽  
15N Labelling ◽  
Acid Type
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