Optical and geometrical isomerization of β-diketonate complexes

Standard molar enthalpies of formation of nickel(II) β-diketonates and monothio-β-diketonates

“…Nickel(II) complexes of b-diketones, monothio-b-diketones, dithio-b-diketones, and alkylthioureas are examples of crystalline inner chelates with O and/or S coordination that have been used as model compounds in physicalchemistry studies [1][2][3][4][5][6][7][8][9]. Nickel(II) acetylacetonate is a classic example of a complex in a trimmer form [10,11].…”

Standard molar enthalpies of formation of copper(II) β-diketonates and monothio-β-diketonates

“…They are bidentate ligands with the possibility of complexation of almost all the metal ions, forming crystalline inner chelates with O and/or S coordination [1][2][3][4][5][6][7][8][9].…”

“…HTFMHPD(l) À1105.6 ± 2.7 [35] À1060.3 ± 5.7 [35] Cu(TFMHPD) 2 À2162.7 ± 5.8 [11] À2040.2 ± 5.9 [11] CF 3 CF 2 CF 2 COCH@C(OH)C(CH 3 ) 3 HHPFDOD(l) À1988.3 ± 4.9 [35] À1943.0 ± 7.0 [35] Cu(HPFDOD) 2 À3920.2 ± 10.0 [11] À3797.5 ± 10.0 [11] -2000 -1500 -1000 -500 0 …”

Synthesis and reactivity of oxygen ligated molybdenum(II) carbonyl complexes

“…Moving to an oxygen based chelate will eliminate these undesirable side reactions and stabilize the metal with stronger field oxygen donor atoms. Despite the widespread use of chelating oxygen ligands, particularly acetylacetonate, across the periodic table [23][24][25][26][27][28], their substitution for dithiocarbamates on low valent group VI metals has only recently been reported for tungsten and is mostly unexplored for molybdenum [29][30][31][32][33][34], though a few mono ligand species are known [35]. The unusual ability of (acac) 2 W complexes to coordinate nitriles in a p-bound fashion and subsequently derivatize them in a stoichiometric fashion is a substantial difference from dtc chemistry and provides further motivation to explore the chemistry of low valent Mo complexes of acetylacetonate (acac) and tropolonate (trop) [30][31][32][33][34]36].…”