Nitrogen Compounds of the Phosphoric and Phosphonic Acids. III. Preparation and Properties of Amides of Phenylphosphonic and Phenylphosphonothioic Acids<sup>1</sup>
作者:WILLIAM C. SMITH、L. F. AUDRIETH
DOI:10.1021/jo01354a010
日期:1957.3
Thiadiazatrimethylenemethane and N,N′,P-triphenylphosphonothioic diamide complexes of platinum(<scp>II</scp>)
作者:William Henderson、Raymond D. W. Kemmitt、Simon Mason、Mark R. Moore、John Fawcett、David R. Russell
DOI:10.1039/dt9920000059
日期:——
Reaction of N,N'-diphenylthiourea with cis-[PtCl2L2] [L = PPh3, PMePh2, PMe2Ph, PEt2Ph, PPh2(NEt2) or L2 = Ph2PCH2CH2PPh2 (dppe) in the presence of silver(I) oxide gives the thiadiazatrimethylenemethane complexes [activated PtSC(=NPh)NPh}L2] an X-ray study on [activated PtSC(= NPh)NPh}(PPh3)2] establishing the presence of a flat activated Pt-S-C-N ring. Related activated Pt-S-P-N ring complexes which contain a reactive nucleophilic P = NPh group are formed upon treatment of PhNHP(S) (Ph)NHPh with cis-[PtCl2L2] [L = PPh3, L2 = dppe, Ph2P(CH2)3PPh2 or Ph2P(CH2)4PPh2] and potassium hydroxide. Treatment of [activated PtSP(= NPh)(Ph)NPh}L2] with Mel afforded an aminophosphonium salt, whilst with substrates containing either C = O or C = S functionalities new complexes of the type [activated [PtSPO(O)(Ph)NPh}L2] or [PtSP(S)(Ph)S}L2] were formed respectively.
US4364991A
申请人:——
公开号:US4364991A
公开(公告)日:1982-12-21
[EN] NON-TOXIC CORROSION-PROTECTION PIGMENTS BASED ON MANGANESE<br/>[FR] PIGMENTS ANTI-CORROSION NON TOXIQUES A BASE DE MANGANESE
申请人:UNIV DAYTON
公开号:WO2004065305A1
公开(公告)日:2004-08-05
Corrosion-inhibiting pigments based on manganese are described that contain a trivalent or tetravalent manganese/valence stabilizer complex. An inorganic or organic material is used to stabilize the trivalent or tetravalent manganese ion to form a compound that is sparingly soluble, exhibits low solubility, or is insoluble in water, depending upon the intended usage. Specific stabilizers are chosen to control the release rate of trivalent or tetravalent manganese during exposure to water and to tailor the compatibility of the powder when used as a pigment in a chosen binder system. Stabilizers may also modify the processing and handling characteristics of the formed powders. Manganese/valence stabilizer combinations are chosen based on the wellfounded principles of manganese coordination chemistry. Many manganese-valence stabilizer combinations are presented that can equal the performance of conventional hexavalent chromium or tetravalent lead systems.
Argent, Peter J.; Healy, James D.; Ibrahim, Ezzeldine H., Phosphorus and Sulfur and the Related Elements, 1981, vol. 12, p. 95 - 102
作者:Argent, Peter J.、Healy, James D.、Ibrahim, Ezzeldine H.、Shaw, Robert A.、Woods, Michael