Nucleophilic addition of hydrazine and benzophenone hydrazone to 2-acetonitrilium closo-decaborate cluster: Structural and photophysical study

Hao

Crystal Research and Technology

et al. 2021

A new 3D organo-silver(I) crystalline complex of [(MPC) 4 (CF 3 COO) 8 Ag 10 ] n (MPC = 4-methyl-7-propargyloxy coumarin) (JMSU-Ag 10 ) has been successfully synthesized. The crystal structure analysis shows that the 10-core silver(I) cluster (Ag 10 ) can be considered as the subunit of JMSU-Ag 10 with different Ag⋯Ag argentophilic interactions. By the protection of organic ligands and Ag⋯Ag interactions, the Ag 10 subunits further compose a chain structure, and then the trifluoroacetate or the MPC ligands bridge the 1D silver(I) chains along different directions to form the 3D framework. Furthermore, JMSU-Ag 10 can be used to detect the hydrazine due to that the Ag + ions can be reduced to Ag 0 species with strong UV-vis absorption. Interestingly, the reduced JMSU-Ag 10 by hydrazine can be further used to catalyze the reduction of 4-nitrophenol to form 4-aminophenol. This work provides a new strategy for the design, synthesis, and the cyclic utilization of functional organo-silver(I) crystalline materials.

Section: Introductionmentioning

confidence: 99%

Coumarin Derivative Induced 3D Organo‐Silver(I) Complex with Tandem Hydrazine Detection and 4‐Nitrophenol Catalysis

Hao

Crystal Research and Technology

et al. 2021

“…Using these methods, derivatives with exo -polyhedral B–C [ 28 , 29 , 30 ], B–N [ 31 , 32 , 33 ], B–O [ 34 , 35 , 36 ], B–S [ 37 , 38 , 39 ], and B–Hal [ 40 , 41 ] (Hal =F,Cl,Br,I) bonds have been received. Nitrilium derivatives of general type [B n H n N≡CR 2 ] − (R 2 = Me, Et, t Bu, Ph) (n = 10,12) are a very suitable molecular platform for creating molecular systems with given properties [ 42 , 43 , 44 ]. These compounds contain the activated C≡N bond and can be functionalized using nucleophilic addition process.…”

Section: Introductionmentioning

confidence: 99%

Fused 1,2-Diboraoxazoles Based on closo-Decaborate Anion–Novel Members of Diboroheterocycle Class

et al. 2021

Self Cite

The novel members of the 1,2-diboraoxazoles family have been obtained. In the present work, we have carried out the intramolecular ring-closure reaction of borylated iminols of general type [B10H9N=C(OH)R]− (R = Me, Et, nPr, iPr, tBu, Ph, 4-Cl-Ph). This process is conducted in mild conditions with 83–87% yields. The solid-state structures of two salts of 1,2-diboraoxazoles were additionally investigated by X-ray crystallography. In addition, the phenomena of bonding interactions in the 1,2-diboraoxazole cycles have been theoretically studied by the Quantum Theory of Atoms in Molecules analysis. Several local and integral topological properties of the electron density involved in these interactions have been computed.

“…It was previously shown that the addition of nucleophilic reagents of various natures to nitrile functional groups in anionic boron clusters can be considered as a convenient way of directed synthesis of their substituted derivatives [12][13][14][15][16][17][18][19][20][21][22][23][24], including those based on biologically active substances [6,25] and biomimetic systems [26,27]. It was found that the addition of tertbutyl esters of proteinogenic amino acids to nitrile derivatives of the closo-decaborate anion and their subsequent selective hydrolysis is a convenient method for the preparation of N-borylated peptides [28].…”

Section: Introductionmentioning

confidence: 99%

New Method for Synthesis of Substituted N-Borylated Dipeptides Based on Acetonitrile Derivative of the closo-Dodecaborate Anion

Nelyubin

Селиванов

Klyukin

et al. 2021

Russ. J. Inorg. Chem.