Synthesis, structure, and magnetic properties of diphenylphosphinates of cobalt(II) and manganese(II). The crystal and molecular structures of the γ forms of poly-bis(μ-diphenylphosphinato)cobalt(II) and manganese(II)

Abstract

. Can. J. Chem. 69,277 (1991).The synthesis of the P and y forms of M(Ph2P02)2 where M = Co and Mn are described and the compounds are characterized by infrared spectroscopy, differential scanning calorimetry, X-ray powder diffraction, and low-temperature (2-80 K) magnetic susceptibility studies. Single crystal X-ray diffraction studies are reported on the y forms. Crystals of the y forms of poly-bis(k-diphenylphosphinato)cobalt(II) and poly-bis(k-diphenylphosphinato)manganese(II) are isomorphous, crystallizing with 4 formula units per unit-cell in the monoclinic space group P2'/c. Lattice constants are a = 8.080 (2) [Traduit par la rkdaction]

Phosphinic Acid Based Linkers: Building Blocks in Metal–Organic Framework Chemistry

“…[12] One possible strategy for the preparation of water-stable MOFs is to use linker groups that form very strong bonds with tri-and tetravalent cations.I nt his context, linkers based on diaryl or dialkylphosphinates (with the general formula R 2 POOH) show promise as they can form coordination architectures similar to those of carboxylates,and yet do so,in accordance with hard and soft acid and base (HSAB) theory, with stronger bonds to hard metals like Fe III and Zr IV .Perhaps then surprisingly,p hosphinates have obtained much less attention for the preparation of coordination polymers, [13] especially in comparison with carboxylic acid based linkers. [2] Until now only monophosphinic acids, [14][15][16] bisphosphinic acids with as hort spacer, [17,18] or bisphosphinic acids with af lexible spacer [19] have been used for the preparation of coordination polymers ( Figure 1). None of these linkers, however, produced coordination polymers displaying permanent porosity.…”

Phosphinic Acid Based Linkers: Building Blocks in Metal–Organic Framework Chemistry

“…Perhaps then surprisingly, phosphinates have obtained much less attention for the preparation of coordination polymers, especially in comparison with carboxylic acid based linkers . Until now only monophosphinic acids, bisphosphinic acids with a short spacer, or bisphosphinic acids with a flexible spacer have been used for the preparation of coordination polymers (Figure ). None of these linkers, however, produced coordination polymers displaying permanent porosity.…”

Synthese, Schwingungs- und Massenspektren von Et2Sn(O2PR2)2 (R = Me, Ph); Kristallstruktur von Et2Sn(O2PPh2)2 / Synthesis, Vibrational Spectra and Mass Spectra of Et2Sn(O2PR2)2 (R = Me, Ph); Crystal Structure of Et2Sn(O2PPh2)2

“…Bei der Co(II)-und M n(II)-Verbindung sind die K ettenglie der wegen der tetraedrischen K oordination am Cobzw. am M n-A tom in spiro-Anordnung m iteinan der verknüpft [17]. Letzteres gilt auch für das //-D iethylphosphinat von Kupfer(II), wo allerdings das K oordinationstetraeder stark abgeflacht ist [ 18], L e diglich im Cu(II)-B is(diphenylphosphinat) gibt es eine planar quadratische Um gebung M 0 4 wie in…”