Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: Mesitylcopper(I), is researched, Molecular C9H11Cu, CAS is 75732-01-3, about Oligonuclear Homoleptic Copper(I) Pyrazolates with Multinucleating Ligand Scaffolds: High Structural Diversity in Solid-State and Solution.COA of Formula: C9H11Cu.
The synthesis of three pyrazole-based, potentially binucleating ligands 3,5-bis(R1NMeCH2)-4-R2pyrazole (L1H: R1 = pyridyl-2-methyl-, R2 = Ph; L2H: R1 = 8-quinolyl-, R2 = H; L3H: R1 = 8-quinolyl-, R2 = Ph) is described. Reaction of L1-3H with 1 equiv of mesitylcopper affords oligonuclear homoleptic complexes [CuL]n (1-3). The single crystal x-ray structure of 2 shows a tetranuclear assembly of linear coordinated Cu(I)-centers bridged by pyrazolato ligands that alternate above and below the Cu4 plane, with addnl. weak interactions from some of the ligand side arms. As the single crystal X-ray structure of 3 reveals, Ph substitution at the 4-position of the pyrazolato framework leads to significant structural modification of the Cu4 array, giving a rhombical tetranuclear complex with two linear coordinated Cu(I) centers that exhibit a short intramol. Cu···Cu contact (2.8212(10) Å) and two peripheral Cu(I) centers in a distorted tetrahedral coordination mode. Thus, 3 represents a very rare example of an inorganic pyrazolato cuprate which can also be viewed as a partly rearranged structural isomer of 2. Also, the crystal lattice of 3 shows an extended network of intra- and intermol. π-π stacking interactions between the aromatic rings. In solution, 1-3 each form two types of oligomers a and b that slowly (<1 s-1) equilibrate at room temperature Using Diffusion Ordered Spectroscopy (DOSY) and variable temperature 1H NMR spectroscopy, a and b correspond to a tetrameric and a (planar) trimeric species. Coordination of the pyridyl/quinolyl side arms that is observed in the solid state seems to be only transient in solution Although many compounds look similar to this compound(75732-01-3)COA of Formula: C9H11Cu, numerous studies have shown that this compound(SMILES:[Cu]C1=C(C)C=C(C)C=C1C), has unique advantages. If you want to know more about similar compounds, you can read my other articles.
Reference:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com