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    N,N -Bis(2-methylphenyl)-N -(2,2,2- trichloroacetyl)phosphoric triamide 

    Type: Journal Paper
    Author : مهرداد پورایوبی; مجتبی کیخا; Masood Parvez; Mehrdad Pourayoubi; MOJTABA KEIKHA
    Year: 2011
    Abstract:

    In the title compound, C16H17Cl3N3O2P, the P—N bonds in the P(O)[NH(2—CH3)C6H4]2 unit [1.623 (4) and 1.637 (3) Å] are shorter than the P—N bond in the C(O)NHP(O) fragment [1.704 (3) Å]. The phosphoryl and carbonyl groups ...

    N,N--Dibenzyl-N--(2-chloroacetyl)-N,N--dimethylphosphoric triamide 

    Type: Journal Paper
    Author : مهرداد پورایوبی; مجتبی کیخا; Marek Nečas; Mehrdad Pourayoubi; MOJTABA KEIKHA
    Year: 2011
    Abstract:

    In the title molecule, C18H23ClN3O2P, the P atom is bonded in a distorted tetrahedral environment. The P=O and N—H groups are syn with respect to each other. The angles at the tertiary N atoms confirm their sp2 character. ...

    Effect of salicylic acid and gibberellin on yield and yield components of Mungbean (Vigna radiata) 

    بررسی اثر سالیسیلیک‌اسید‌ و جیبرلین بر عملکرد و اجزای عملکرد ماش (Vigna radiata)

    Author : Mojtaba Keikha; مجتبی کیخا; Mohsen Noori; Abbas Keshtehgar; محسن نوری; عباس کشته گر
    Publisher: Ferdowsi University of Mashhad Pressانتشارات دانشگاه فردوسی مشهد
    Year: 1395
    Abstract:

    چکیدهrnهورمون‌های گیاهی از جمله سالیسیلیک‌اسید‌ و جیبرلین بر صفات کمّی و کیفی گیاهان زراعی مؤثر‌ند. کاربرد خارجی تنظیم‌کننده‌های رشد گیاهی به‌عنوان راهکاری مؤثر برای بهبود مقاومت به شوری در گیاهان مطرح است. به‌منظور بررسی ...

    Syntheses and structures of four new mixed-amide phosphoric triamides 

    Type: Journal Paper
    Author : مجتبی کیخا; مهرداد پورایوبی; Atekeh Tarahhomi; Arie van der Lee; MOJTABA KEIKHA; Mehrdad Pourayoubi
    Year: 2016
    Abstract:

    Phosphoric triamides have extensive applications in biochemistry and are also used as O-donor ligands. Four new mixed-amide phosphoric triamide structures, namely rac-N-tert-butyl-N',N"-dicyclohexyl-N"-methylphosphoric ...

    A new Z′ = (2 +0.5 +0.5) amidophosphoester structure: Hirshfeld surface analysis of symmetry- independent molecules 

    Type: Journal Paper
    Author : مجتبی کیخا; مهرداد پورایوبی; Atekeh Tarahhomi; Arie van der Lee; MOJTABA KEIKHA; Mehrdad Pourayoubi
    Year: 2017
    Abstract:

    Tetraethyl 1,3-phenylenebis(phosphoramidate) was synthesized and characterized by 1H, 13C, 31P NMR, IR and mass spectroscopies. The asymmetric unit is composed of two half-molecules, each residing on a twofold axis, and ...

    Synthesis, Crystal Structure and Hirshfeld Surface (HS) Analysis of Two New Phosphoric Triamides: A Comparison of HSs for Structures with Different Molecular Assemblies 

    Type: Journal Paper
    Author : مجتبی کیخا; مهرداد پورایوبی; Arie van der Lee; MOJTABA KEIKHA; Mehrdad Pourayoubi; Arie van der Lee
    Year: 2019
    Abstract:

    Two new phosphoric triamides, N-(2-chloro-5-fluorobenzoyl)-N′,N\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\"-bis(morpholin-4-yl)-phosphoric triamide, (2-Cl,5-F-C6H3C(O)NH)P(O)(NC4H8O)2, 1, and N,N′-dibenzyl-N\\\\\\\\\\\\\\\\\\\\\\\\\\ ...

    Synthesis, spectroscopic characterization and crystal structure of 3,5-F2C6H3C(O)N(H)P(O)X, X= NH-CH2-C(CH3)2-CH2-NH: The first 

    Type: Conference Paper
    Author : صمد شوق پوربیرق; مهرداد پورایوبی; مجتبی کیخا; samad shoghpour bayraq; Mehrdad Pourayoubi; MOJTABA KEIKHA
    Year: 2011
    Abstract:

    A new phosphoric triamide compound with formula 3,5-F2C6H3C(O)N(H)P(O)X2, X2= NH-CH2-C(CH3)2-CH2-NH (1) was synthesized and characterized by 1H, 13C, 19F, 31P{1H} NMR, IR spectroscopy, CHN elemental analysis and X-ray ...

    Synthesis and characterization of three new amido-phosphate salts with a C(O)NHP(O)(O)-[N] skeleton 

    Type: Conference Paper
    Author : بنفشه وحدانی الویری; مجتبی کیخا; مهرداد پورایوبی; Banafsheh Vahdani Alviri; MOJTABA KEIKHA; Mehrdad Pourayoubi
    Year: 2015
    Abstract:

    The structural features of three new [XC(O)NHP(O)(O)Y]ˉ[H2Y]+ amido-phosphate salts [X = CCl3 and Y = NHC6H4(2F) (1); X = CCl3 and Y = N(C2H5)(C6H11) (2); X = C6H5 and Y = (NHC6H4(3Cl) (3)] are studied. For each of ...

    Cyclohexylammonium acetate– N,N-,N-- -tricyclohexylphosphoric triamide (1/1) 

    Type: Journal Paper
    Author : مهرداد پورایوبی; مجتبی کیخا; Arnold L. Rheingold; James A. Golen; Mehrdad Pourayoubi; MOJTABA KEIKHA
    Year: 2012
    Abstract:

    In the phosphoric triamide molecule of the title compound, C6H14N+.C2H3O2–C18H36N3OP, the P atom displays a distorted tetrahedral geometry and the cyclohexyl rings adopt chair conformations with the NH groups in equatorial ...

    Bis(pyrrolidin-1-yl)phosphinic (2,4-difluorobenzoyl) amide 

    Type: Journal Paper
    Author : مجتبی کیخا; مهرداد پورایوبی; Jerry P. Jasinski; James A. Golen; MOJTABA KEIKHA; Mehrdad Pourayoubi
    Year: 2012
    Abstract:

    The P atom in the title molecule, C15H20F2N3O2P, is in a distorted tetrahedral P(O)(N)(N)2 environment. The phosphoryl group and the NH unit adopt a syn orientation with respect to each other. An F atom at position 2 and ...

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