0000000000772093
AUTHOR
Marius Lupu
Icosahedral carboranes as scaffolds for congested regioselective polyaryl compounds : the distinct distance tuning of C-C and its antipodal B-B
Four-fold aryl substituted o-carborane derivatives with defined patterns of substitution at the antipodal region of the cluster carbon atoms have been achieved. It is proven that this region is congested but lacks steric hindrance. Also, the two antipodal sites Cc-Cc and B9-B12 are affected very distinctly by electron donor substituents. peerReviewed
Stepwise sequential redox potential modulation possible on a single platform.
Step by step: The cluster [3,3'-Co(1,2-C(2)B(9)H(11))(2)](-) is an excellent platform for making a stepwise tunable redox potential system by dehydroiodination. With the addition of up to eight iodine substituents (purple; see picture), there is a fall in the E(1/2)(Co(III)/Co(II)) value from -1.80 V to -0.68 V (vs. Fc(+)/Fc; Fc = ferrocene). A practical application of this tunability has been observed in the growth of polypyrrole.
Icosahedral carboranes as scaffolds for congested regioselective polyaryl compounds: the distinct distance tuning of C–C and its antipodal B–B
Four-fold aryl substituted o-carborane derivatives with defined patterns of substitution at the antipodal region of the cluster carbon atoms have been achieved. It is proven that this region is congested but lacks steric hindrance. Also, the two antipodal sites Cc–Cc and B9–B12 are affected very distinctly by electron donor substituents.
Poly-iodinated closo 1,2-C 2 B 10 and nido [7,8-C 2 B 9 ] − carborane frameworks: Synthesis and consequences
Abstract The preparation of Cc-monosubstituted closo and nido carborane derivatives, mono-, di and tetraiodinated is reported. Some of these mono-to poly-iodinated nido carboranes are studied in terms of the acidity of the open face bridging proton, their chemical shift position in the 1H NMR, and the lesser tendency to η5-coordination in parallel to a larger number of iodo groups.
Synthesis of Globular Precursors
o-Carborane (C2 B10 H12 ) was adapted to perform as the core of globular macromolecules, dendrons or dendrimers. To meet this objective, precisely defined substitution patterns of terminal olefin groups on the carborane framework were subjected to Heck cross-coupling reactions or hydroboration leading to hydroxyl terminated arms. These led to new terminal groups (chloro, bromo, and tosyl leaving groups, organic acid, and azide) that permitted ester production, click chemistry, and oxonium ring opening to be performed as examples of reactions that demonstrate the wide possibilities of the globular icosahedral carboranes to produce new dendritic or dendrimer-like structures. Polyanionic speci…
CCDC 1058310: Experimental Crystal Structure Determination
Related Article: Marius Lupu, Adnana Zaulet, Francesc Teixidor, Reijo Sillanpää, Clara Viñas|2015|J.Organomet.Chem.|798|171|doi:10.1016/j.jorganchem.2015.05.053
CCDC 1058313: Experimental Crystal Structure Determination
Related Article: Marius Lupu, Adnana Zaulet, Francesc Teixidor, Reijo Sillanpää, Clara Viñas|2015|J.Organomet.Chem.|798|171|doi:10.1016/j.jorganchem.2015.05.053
CCDC 1913783: Experimental Crystal Structure Determination
Related Article: Zsolt Kelemen, Ariadna Pepiol, Marius Lupu, Reijo Sillanpää, Mikko M. Hänninen, Francesc Teixidor, Clara Viñas|2019|Chem.Commun.|55|8927|doi:10.1039/C9CC04526K
CCDC 1058311: Experimental Crystal Structure Determination
Related Article: Marius Lupu, Adnana Zaulet, Francesc Teixidor, Reijo Sillanpää, Clara Viñas|2015|J.Organomet.Chem.|798|171|doi:10.1016/j.jorganchem.2015.05.053
CCDC 1913782: Experimental Crystal Structure Determination
Related Article: Zsolt Kelemen, Ariadna Pepiol, Marius Lupu, Reijo Sillanpää, Mikko M. Hänninen, Francesc Teixidor, Clara Viñas|2019|Chem.Commun.|55|8927|doi:10.1039/C9CC04526K
CCDC 1562911: Experimental Crystal Structure Determination
Related Article: Zsolt Kelemen, Ariadna Pepiol, Marius Lupu, Reijo Sillanpää, Mikko M. Hänninen, Francesc Teixidor, Clara Viñas|2019|Chem.Commun.|55|8927|doi:10.1039/C9CC04526K
CCDC 1058312: Experimental Crystal Structure Determination
Related Article: Marius Lupu, Adnana Zaulet, Francesc Teixidor, Reijo Sillanpää, Clara Viñas|2015|J.Organomet.Chem.|798|171|doi:10.1016/j.jorganchem.2015.05.053
CCDC 1871938: Experimental Crystal Structure Determination
Related Article: Zsolt Kelemen, Ariadna Pepiol, Marius Lupu, Reijo Sillanpää, Mikko M. Hänninen, Francesc Teixidor, Clara Viñas|2019|Chem.Commun.|55|8927|doi:10.1039/C9CC04526K
CCDC 1056507: Experimental Crystal Structure Determination
Related Article: Francesc Teixidor, Reijo Sillanpää, Ariadna Pepiol, Marius Lupu and Clara Viñas|2015|Chem.-Eur.J.|21|12778|doi:10.1002/chem.201501223
CCDC 1871937: Experimental Crystal Structure Determination
Related Article: Zsolt Kelemen, Ariadna Pepiol, Marius Lupu, Reijo Sillanpää, Mikko M. Hänninen, Francesc Teixidor, Clara Viñas|2019|Chem.Commun.|55|8927|doi:10.1039/C9CC04526K
CCDC 1058314: Experimental Crystal Structure Determination
Related Article: Marius Lupu, Adnana Zaulet, Francesc Teixidor, Reijo Sillanpää, Clara Viñas|2015|J.Organomet.Chem.|798|171|doi:10.1016/j.jorganchem.2015.05.053