Results 121 to 130 of about 11,273 (151)
Some of the next articles are maybe not open access.
X-Ray crystal and molecular structure of the nido-carborane B7C2H7Me2
Journal of the Chemical Society, Chemical Communications, 1972The nido-carborane B7C2H7Me2 occurs as a bicapped Archimedean antiprism with the 6 position missing, methylated carbon atoms in the 1 and 2 cage positions, and bridging hydrogen atoms between the 7–10 and 9–10 positions.
J. C. Huffman, W. E. Streib
openaire +1 more source
Synthesis of new nido-carborane based carboxylic acids and amines
Polyhedron, 2018Abstract A series of new nido-carborane based carboxylic acids 10-HOOC(CH2)n(Me)S-7,8-C2B9H11 (n = 1–4) was prepared by alkylation of tetrabutylammonium salt of 10-methylthio-7,8-dicarba-nido-caborane with ω-halogenoalkyl esters or nitriles followed by acid hydrolysis. Likewise nido-carborane based amines 10-H2N(CH2)n(Me)S-7,8-C2B9H11 (n = 2, 3) were
Svetlana A. Erokhina +5 more
openaire +1 more source
An ab initio/IGLO/NMR study of the nido-carborane C2B6H10
Inorganic Chemistry, 1992The structure of the eight-vertex nido-carborane C 2 B 6 H 10 has been investigated by employing the ab initio/IGLO/NMR method. The experimental 11 B NMR chemical shifts for C 2 B 6 H 10 are compatible with three different structures (one static and two requiring fluxionality).
Joseph W. Bausch +4 more
openaire +1 more source
17-Crown-5 ether condensed with 11-vertex nido-carborane
Russian Chemical Bulletin, 2014The reaction of easily accessible nido-carborane [nido-7,8-(HOCH2)2-7,8-C2B9H10]- with tetraethylene glycol tosylate produces nido-carborane sodium salt condensed with 17-crown-5 ether, Na[nido-7,8-O(CH2CH2OCH2CH2OCH2)2-7,8-C2B9H10]. The structures of solvate complexes of this crown ether with acetone, ethanol, and water were studied by X-ray ...
D. S. Perekalin +2 more
openaire +1 more source
Vibrational spectrum and structure of nido-carborane 11-CH3-2,7-C2B9H12
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science, 19861. The full vibrational spectra of the nido-carborane 11-CR3-2, 7-C2B9H12 and its μ-dideutero derivative were obtained. An assignment is proposed for some of the frequencies. 2. The Raman spectrum contained broad bands belonging to the stretching vibrations of the extra-hydrogens.
L. I. Leites +4 more
openaire +1 more source
Applied Radiation and Isotopes, 2004
Several thymidine analogues substituted with closo- and nido-carborane at the N-3 position were synthesized. The nido-carboranyl thymidine analogues were designed to be effective substrates for human thymidine kinase 1 in combination with an increased water solubility sufficient for clinical application in boron neutron capture therapy.
Youngjoo, Byun +7 more
openaire +2 more sources
Several thymidine analogues substituted with closo- and nido-carborane at the N-3 position were synthesized. The nido-carboranyl thymidine analogues were designed to be effective substrates for human thymidine kinase 1 in combination with an increased water solubility sufficient for clinical application in boron neutron capture therapy.
Youngjoo, Byun +7 more
openaire +2 more sources
Journal of Molecular Graphics and Modelling, 2023
A detailed investigation of the σ-hole on the halogen atom present in the nido-heteroboranes is made by employing quantum mechanical methods. The bromide and the hydroxyl groups are incorporated in the exo-substituents of the nido-boranes. The potential of the bromide σ-hole was compared to that of electrostatic potential of hydroxyl group counterpart.
Archan, Ravi Sankar +2 more
openaire +2 more sources
A detailed investigation of the σ-hole on the halogen atom present in the nido-heteroboranes is made by employing quantum mechanical methods. The bromide and the hydroxyl groups are incorporated in the exo-substituents of the nido-boranes. The potential of the bromide σ-hole was compared to that of electrostatic potential of hydroxyl group counterpart.
Archan, Ravi Sankar +2 more
openaire +2 more sources
Synthesis of a Conjugate of Curcumin with a nido-Carborane Cluster and Its Cytotoxicity
INEOS OPENA conjugate of curcumin with nido-carborane was synthesized by the Cu-catalyzed 1,3-dipolar [3+2]-cycloaddition between a zwitter-ionic В-substituted nido-carborane bearing a functional azido group 9-N3(CH2)3Me2N-nido-7,8-C2B9H11 with alkynyl-tagged curcumin.
A. A. Druzina +3 more
openaire +1 more source
Synthesis and vesicle formation of a nido-carborane cluster lipid for boron neutron capture therapy
Chem. Commun., 2004The nido-carborane lipid, which has a double-tailed moiety, was synthesized from heptadecanol in 5 steps. Analysis in a transmission electron microscope by negative staining with uranyl acetate showed that the lipid formed a stable vesicle in which calcein was encapsulated.
H Nakamura +4 more
openaire +2 more sources
Journal of Nanoscience and Nanotechnology, 2021
Carborane are widely applied in boron neutron capture therapy (BNCT) field, but it is difficult to perform biocompatibility with cells due to its own water solubility differences, so how to solve the water solubility problem has always been the focus of research.
openaire +2 more sources
Carborane are widely applied in boron neutron capture therapy (BNCT) field, but it is difficult to perform biocompatibility with cells due to its own water solubility differences, so how to solve the water solubility problem has always been the focus of research.
openaire +2 more sources