نتایج جستجو برای: 3 mn
تعداد نتایج: 1841416 فیلتر نتایج به سال:
introduction: median nerve (mn), one of terminal branches of brachial plexus, is commonly associated with several variations. this research aimed to review the literature related to the variations of mn from axillary region to cubital fossa. methods: we searched google scholar, science direct, springer, and pubmed electronic databases to compile reports related to the variation of mn published ...
Three accurate X-ray diffraction experiments (Mo Kalpha, T = 190, 240 and 298 K) were carried out to track the temperature dependence of the electron density in the cubic perovskite potassium manganese trifluoride, KMnF3, from room temperature to just above that of the phase transition to the tetragonal structure (186 K), and to correlate the parameters of the critical points with the phase-tra...
In the present work Mn3O4 nanoparticles (NPs) with spinel structure were synthesized successfully via combustion route with MnIII(acac)3 as precursor in two different temperatures. The morphology of the synthesized Mn3O4 were investigated by field emission scanning electron microscope (FESEM) and structural analysis was studied by po...
Capillary electrophoresis (CE) and electrospray ionisation (ESI) mass spectra of aqueous solutions of manganese(II) complexes of the monoanions of the pentadentate ligands N-methyl-N'-carboxymethyl-N,N'-bis(2-pyridylmethyl)ethane-1,2-diamine (mcbpen(-)) and N-benzyl-N'-carboxymethyl-N,N'-bis(2-pyridylmethyl)ethane-1,2-diamine (bcbpen(-)), show the presence of a mixture of closely related Mn(II)...
opaths: 1#msubsup 1#1#mo#Σ 1#2#1#mi#i 1#2#2#mo#= 1#2#3#mn#1 1#3#mi#n 2#msub 2#1#mi#a 2#2#mi#i opaths: msubsup 1#mo#Σ 2#1#mi#i 2#2#mo#= 2#3#mn#1 3#mi#n upaths: #msubsup ##mo#Σ ###mi#i ###mo#= ###mn#1 ##mi#n #msub ##mi#a ##mi#i upaths: msubsup #mo#Σ ##mi#i ##mo#= ##mn#1 #mi#n sisters: mi#i mo#= mn#1 sisters: mo#Σ mi#n description_en: the polynomial (indexed as: polynomi) Extracting Textual Inform...
Complex assembly preferences and resultant spin state choice Jahn-Teller distortion mode in twelve Mn(III) complexes of varying nuclearity with Schiff base chelate ligands different sizes are compared. Mononuclear Mn(5-F-Sal2323)]OTf (1), [Mn(5-F-Sal2323)]ClO4 (2) [Mn(5-F-Sal2323)]NO3, (3) the 8-carbon R-Sal2323 type show rare axial compression at room temperature also reversible thermal switch...
The synthesis and magnetic properties are reported of two new clusters [Mn(10)O(4)(OH)(2)(O(2)CMe)(8)(hmp)(8)](ClO(4))(4) (1) and [Mn(7)(OH)(3)(hmp)(9)Cl(3)](Cl)(ClO(4)) (2). Complex 1 was prepared by treatment of [Mn(3)O(O(2)CMe)(6)(py)(3)](ClO(4)) with 2-(hydroxymethyl)pyridine (hmpH) in CH(2)Cl(2), whereas 2 was obtained from the reaction of MnCl(2).4H(2)O, hmpH, and NBu(n)(4)MnO(4) in MeCN ...
The reaction of the mixed-valent metal triangles [Mn(3)O(O(2)CR)(6)(py)(3)] (R = CH(3), Ph, C(CH(3))(3)) with the tripodal ligands H(3)thme (1,1,1-tris(hydroxymethyl)ethane) and H(3)tmp (1,1,1-tris(hydroxymethyl)propane) in MeCN, produces a family of manganese rodlike complexes whose structures are all derived from a series of edge-sharing triangles. Variable temperature direct current (dc) mag...
The photo-induced reaction of Mn2(CO)10 with the olefinic phosphane P(C7H7)3 (1; [P] if coordinated to a metal) leads stepwise to the axially substituted derivatives ax-{Mn2(CO)9[P]} (2) and ax,ax-{Mn2(CO)8[P]2} (3). Oxidative cleavage of 3 by halogens gives cis-{Mn(X)(CO)4[P]} (X = Cl (4a), Br (4b), I (4c)), whereas oxidation of 3 with NOBF4 provides a route to the salt {Mn(CO)4[P]}BF4 (5) whi...
The reactions of the Mn(III)(3) and Mn(II)Mn(III)(2) complexes [Mn(3)O(O(2)CEt)(6)(py)(3)][ClO(4)] and [Mn(3)O(O(2)CEt)(6)(py)(3)] with pyridine-2,6-dimethanol (pdmH(2)) afford the mixed-valence Mn(II)(6)Mn(III)(2) octanuclear complex [Mn(8)O(2)(py)(4)(O(2)CEt)(8)(L)(2)][ClO(4)](2) (1) and the Mn(II)(7)Mn(III)(2) enneanuclear complex [Mn(9)(O(2)CEt)(12)(pdm)(pdmH)(2)(L)(2)] (2), respectively. B...
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