نتایج جستجو برای: pentamminecobaltiii complex
تعداد نتایج: 783835 فیلتر نتایج به سال:
a new tris-chelate cd(ii) complex, [cd(dadmbtz)3](clo3)2 has been successfully synthesized and characterized by ir, 1h, 13c nmr spectroscopy, elemental analysis and single crystal x-ray determination. the thermal behavior, uv-vis and fluorescence spectra of compound were studied. in reaction with dadmbtz, cadmium (ii) forms a tris-chelate complex with nearly c3 symmetry for coordination polyhed...
the internal structure of dna-ctab and dna-ddab is investigated by a small angel x- ray scattering(saxs) instrument. hexagonal packing of dna was observed for dna complex with ctab, and for ddabcomplex is observed lamellar structure. variations in the internal spacing and degree of long-range ordering aredependent on both surfactant type and concentrations of added salt. when we increased the a...
conclusions the diagnosis of thrombocytosis is not easy in all cases. the coexistence of anca and the immune complex in cgn may cause a severe inflammatory state, leading to extreme rt. the roles that the immune complex and anca play on the effect of the platelet count and function in cgn need further research. introduction we describe a female patient with extreme reactive thrombocytosis (rt) ...
reserches show that relationship between human and residential places is based upo both emotional and identity structures. in other words, habitat place is not only the creator of a part of humanistic identity but also form a kind of sentimental and emotional bond that may result in tendency to maintain closeness to a specific place. therefor, formaton of emotional and identity relationship wit...
abstract the influence of cation?? and anion?? interactions on the strength and nature of n…h hydrogen bond has been investigated by quantum chemical calculations in s-triazine…3hf complex. ab initio calculations were performed at mp2/6-311++g(d,p) level of theory. the natural bond orbital (nbo) analysis and the bader’s quantum theory of atoms in molecules (aim) were also used to elucidate t...
in this paper, we give some necessary conditions for a complex difference equation of malmquist type $$sum^n_{j=1}f(z+c_j)=frac{p(f(z))}{q(f(z))},$$ where $n(in{mathbb{n}})geq{2}$, and $p(f(z))$ and $q(f(z))$ are relatively prime polynomials in $f(z)$ with small functions as coefficients, admitting a meromorphic function of finite order. moreover, the properties of finite o...
stereoisograms of octahedral complexes are classified into five types (type i--typev) under the action of the corresponding rs-stereoisomeric group. their enumeration is accomplished in a type-itemized fashion, where fujita's proligand method developed originally for combinatorial enumeration under point groups (s. fujita, theor. chem. acc., 113, 73--79 (2005)) is extended to meet the requireme...
بازهای شیف به طور گسترده ای به عنوان لیگاند در شیمی کئوردیناسیون به کار می روند.همچنین این ترکیبات به عنوان کاتالیزور و در پزشکی به عنوان آنتی بیوتیک،آنتی تومور و ضد حساسیت کاربرد دارند.بازهای شیف به آسانی تهیه شده و تقریبا با همه یون های فلزی کمپلکس های پایداری تشکیل می دهند و باعث پایداری انواع یون ها ی فلزات واسطه در حالت های اکسیداسیون متفاوت می شوند. بسیاری از کمپلکس های باز شیف فعالیت کا...
several novel mononuclear zn(ii) complexes, [zn(bpy)l2], where bpy=2,2’-bipyridine and l=monoanions of phenylcyanamide (pcyd), 4-methylphenylcyanamide (4-mepcyd), 3,5-dimethylphenylcyanamide(3,5-me2pcyd),4-methoxyphenylcyanamide(4-meopcyd), 3,5-dimeth-oxyphenylcyanamide (3,5-meo2pcyd), 3-chlorophenylcyanamide (3-clpcyd), 2,3-dichlorophenyl-cyanamide (2,3-cl2pcyd), 4-bromophenylcyanamide (4-brpc...
the interaction between 4, 7, 13, 16, 21, 24 - hexaoxa-1,10 - diazabicyclo [8.8.8] hexacosane (c222) and 7,7,8,8- teracyanoquinodimethane (tcnq) has been studied in chloroform at 25°c. the results indicate a two step mechanism. at the first step, two adducts (assign as p1 and p2) are formed through equilibrium reactions. in continue and through nonequilibrium reactions the adducts are converted...
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