Three dinuclear Co complexes [(Co2(H2L)2(OAc)2)] CH3OH (1), [CoCo(H2L)2(OAc)] 2CH3OH H2O (2), and [CoCo(H2L)2(CH3CN)(H2O)]Cl CH3CN 4H2O (3) [H4L is (3,5-di-tert-butyl-2-hydroxybenzylideneamino)-2(hydroxymethyl)propane-1,3-diol] were synthesized and characterized using single crystal X-ray diffraction and other analytical methods. Complex 1 having two Co centres was the only one found to show ca...

This paper investigates the effects of substituents in PNP-type ruthenium complexes catalytic hydrogenation CO2 to formate using DFT method. Six groups were considered as linked P atom PNP ligand: hydrogen, methyl, iso-propyl, tert-butyl, cyclopentyl, and cyclohexyl. The substituent analyzed from perspectives steric hindrance promotion hydrogen bonding. With joint functions bonding during coord...

Silylenes are silicon analogues of carbenes and exist with neutral divalent silicon atoms. The first stable N-heterocyclic silylene (NHSi) was reported byWest et al., in 1994. Since then, many stable NHSis d,3 and other silylenes have been isolated. The reactivity pattern of NHSis is quite comparable with that of the N-heterocyclic carbenes (NHCs), where the latter led to many applications in c...

Recently, 7,16-di-tert-butyl-5,14-bis(4-(tert-butyl)phenyl)dibenzo[a,m]rubicene has been reported as a polycyclic aromatic hydrocarbon synthesized through peculiar Scholl reaction and exhibited promising properties for optical electronic applications. This compound previously crystallized solvate, but the presence of disordered solvent molecules hampered complete elucidation its crystal structu...

This study is aimed at evaluating the performance of tetrakismethylene-3-3,5-di-tert-butyl-4-hydroxyphenyl propionate methane S1010, tris2,4-di-tert-butylphenyl phosphite S1680 and ascorbic acid AA antioxidants in stabilization of hydroxypropyl cellulose HPC. For this purpose, a number of films with weight percent ratios of 0.4 w/w were prepared in a 1 isopropanol solution w/v. Then, the films ...

1,3,6,8-Tetra-tert-butylcarbazol-9-yl and 1,8-diaryl-3,6-di(tert-butyl)carbazol-9-yl ligands have been utilized in the synthesis of potassium and magnesium complexes. The potassium complexes (1,3,6,8-tBu4carb)K(THF)4 (1; carb = C12H4N), [(1,8-Xyl2-3,6-tBu2carb)K(THF)]2 (2; Xyl = 3,5-Me2C6H3) and (1,8-Mes2-3,6-tBu2carb)K(THF)2 (3; Mes = 2,4,6-Me3C6H2) were reacted with MgI2 to give the Hauser ba...

In the title mol-ecule, C(37)H(38)O(6), the non-fused C atom belonging to the five-membered ring of the fluorene system is connected to two p-phenyl-ene rings, the rings opening up the C(ar-yl)-C-C(ar-yl) angle to 113.1 (1)°. The four-atom -O-CH(2)-C(=O)-O- chain between the p-phenyl-ene ring and the tert-butyl group assumes a more regular W-shaped conformation for one substituent [O-C-C-C tors...

We report the investigation of fundamental entropic chain effects that enable the tuning of modular ligation chemistry - for example dynamic Diels-Alder (DA) reactions in materials applications - not only classically via the chemistry of the applied reaction sites, but also via the physical and steric properties of the molecules that are being joined. Having a substantial impact on the reaction...