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- Currently displaying 27141 - 27160 of 29308 publications
Intramolecular nucleophilic attack by urea nitrogen. Reactivity–selectivity relationships for the general acid–base catalysed cyclisations of ureido acids and esters
JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 2
(1989)
347
(doi: 10.1039/p29890000347)
Infrared laser spectroscopy of the 201 and 2 12 bands of H2O+ (X̃ 2B1)
Journal of Chemical Physics
(1989)
91
3384
(doi: 10.1063/1.456913)
A new approach to the assembly of electron donor–spacer–acceptor systems
Chemical Communications
(1989)
1765
(doi: 10.1039/C39890001765)
Synthesis of a cyclic porphyrin trimer with a semi-rigid cavity
Journal of the Chemical Society, Chemical Communications
(1989)
1714
(doi: 10.1039/c39890001714)
The first crystal and molecular structure of lanthanide homodinuclear macrocyclic complexes showing metal-metal pair interactions
Journal of the Chemical Society Chemical Communications
(1989)
1531
(doi: 10.1039/c39890001531)
Synthesis of a novel gallosilicate with the ferrierite structure
Journal of the Chemical Society, Chemical Communications
(1989)
1289
(doi: 10.1039/C39890001289)
N.m.r. studies of the motion of the hydride proton in solid HRu 10C(CO)24-
Journal of the Chemical Society, Chemical Communications
(1989)
1139
(doi: 10.1039/c39890001139)
Syntheses relevant to vitamin B12biosynthesis: the glutamate route to (–)-ring-B imide and synthesis of the 2,7,12,20-tetramethylisobacteriochlorin
Journal of the Chemical Society Chemical Communications
(1989)
1119
(doi: 10.1039/C39890001119)
Syntheses relevant to vitamin B 12 biosynthesis: the malate route to (–)-ring-B imide and synthesis of the 2,7,20-trimethylisobacteriochlorin
Chemical Communications
(1989)
1116
(doi: 10.1039/c39890001116)
Intercalation of organic and inorganic anions into layered double hydroxides
Journal of the Chemical Society, Chemical Communications
(1989)
926
(doi: 10.1039/C39890000926)
Two monomeric, octahedral complexes of alkaline earth metal salts: syntheses, physical characteristics, and crystal structures of Srl 2 ·4HMPA and Sr(NCS) 2 ·4HMPA [HMPA = O : P(NMe 2 ) 3 ]
J. Chem. Soc., Chem. Commun.
(1989)
893
(doi: 10.1039/c39890000893)
An oxygen species for the oxidative coupling of methane at lower temperatures
Journal of the Chemical Society Chemical Communications
(1989)
473
(doi: 10.1039/c39890000473)
Biosynthesis of vitamin B12: Synthesis of (±)-[5- 13C]faktor-1 ester: Determination of the oxidation state of precorrin-1
Journal of the Chemical Society Chemical Communications
(1989)
428
(doi: 10.1039/C39890000428)
A unique lithium halide complex, [(LiBr) 2 ·3HMPA·toluene]: synthesis from reaction of solid NH 4 Br with Bu n Li in HMPA (hexamethylphosphoramide)/toluene media, crystal structure showing two Li–Br units linked by three µ 2 -HMPA ligands, and detection of 7 Li 31 P coupling in solutions of the complex
J. Chem. Soc., Chem. Commun.
(1989)
318
(doi: 10.1039/c39890000318)
Quadrupole nutation n.m.r. reveals the presence of a new aluminium species in hydrothermally treated zeolites
Journal of the Chemical Society Chemical Communications
(1989)
240
(doi: 10.1039/C39890000240)
Assembly of a photoactive supramolecule using porphyrin co-ordination chemistry
Journal of the Chemical Society Chemical Communications
(1989)
226
(doi: 10.1039/c39890000226)
Assignment of the 13 C N.M.R. spectrum of the Klebsiella K3 serotype polysaccharide by COSY spectroscopy
Journal of the Chemical Society, Chemical Communications
(1989)
167
(doi: 10.1039/c39890000167)
DIRECT OBSERVATION OF SHAPE SELECTIVITY IN ZEOLITE ZSM-5 BY MAGIC-ANGLE-SPINNING NMR
Nature
(1989)
339
200
(doi: 10.1038/339200a0)
The biosynthesis of porphyrins, chlorophylls, and vitamin B 12
Natural Product Reports
(1989)
6
171
(doi: 10.1039/np9890600171)