نتایج جستجو برای: heteroleptic chelate

تعداد نتایج: 4157  

Journal: :international journal of nanoscience and nanotechnology 2014
a. a. saki m. abbasinezhad a. a. rafati

the 440 fertile eggs, in a completely randomized design were divided into 11 treatments with four replicatesand 10 eggs per each replicate. treatments including: (t1; control; without injection), (t2; injected with 0.3ml saline 9.0%; sham control), (t3, t4 and t5) 25, 75, 125 ppm fe-nano, (t6, t7 and t8) 50, 100, 150 ppmfe-nano-alimet chelate, (t9, t10 and t11) 50, 100, 150 ppm fe-aliment chela...

Journal: :Dalton transactions 2010
Dennis Heitmann Cameron Jones David P Mills Andreas Stasch

The preparation of a series of homoleptic, four-coordinate lanthanide(ii) complexes, [Ln(Priso)(2)] (Ln = Sm, Eu or Yb) incorporating the bulky guanidinate ligand Priso(-) ([(ArN)(2)CNPr(i)(2)](-), Ar = 2,6-diisopropylphenyl) is described. X-ray crystallography shows the complexes to be isostructural and to exhibit coordination geometries midway between tetrahedral and planar. Comparisons betwe...

2017
Witold M Bloch Julian J Holstein Wolf Hiller Guido H Clever

Control over the integrative self-sorting of metallo-supramolecular assemblies opens up possibilities for introducing increased complexity and function into a single self-assembled architecture. Herein, the relationship between the geometry of three ligand components and morphology of three self-sorted heteroleptic [Pd2 L2 L'2 ]4+ cages is examined. Pd-mediated assembly of two bis-monodentate p...

Journal: :Dalton transactions 2012
Mari Elena Owen Emma Carter Graham J Hutchings Benjamin D Ward Damien M Murphy

X- and Q-band EPR and ENDOR spectroscopy was used to study the structure of a series of heteroleptic and homoleptic copper bis(oxazoline) complexes, based on the (-)-2,2'-isopropylidenebis[(4S)-4-phenyl-2-oxazoline] ligand and bearing different counterions (chloride versus triflate); labelled [Cu(II)(1a-c)]. The geometry of the two heteroleptic complexes, [Cu(II)(1a)] and [Cu(II)(1c)], depended...

Journal: :به زراعی کشاورزی 0
سعیده ملکی فراهانی استادیار، گروه زراعت و اصلاح نباتات، دانشکدۀ کشاورزی، دانشگاه شاهد، تهران، ایران مهدی عقیقی شاهوردی دانشجوی دکتری، گروه زراعت و اصلاح نباتات، دانشکدۀ کشاورزی، دانشگاه شاهد، تهران، ایران

to evaluate the effect of nano-iron chelate and also to make a comparison with effect of eddha iron chelate on saffron, an experiment was conducted as factorial based on a randomized complete block design with six treatments and three replications in shahed university, tehran in 2011 and 2012. treatments included iron fertilizer (nano chelate and common chelate) in three levels (zero, 450 and 9...

2012
Mari Elena Owen Emma Carter Graham J. Hutchings Benjamin D. Ward Damien M. Murphy

Xand Q-band EPR and ENDOR spectroscopy was used to study the structure of a series of heteroleptic and homoleptic copper bis(oxazoline) complexes, based on the (−)-2,2′-isopropylidenebis[(4S)-4-phenyl2-oxazoline] ligand and bearing different counterions (chloride versus triflate); labelled [Cu(1a–c)]. The geometry of the two heteroleptic complexes, [Cu(1a)] and [Cu(1c)], depended on the choice ...

Journal: :Dalton transactions 2013
Haruka Uesugi Toshiaki Tsukuda Koichiro Takao Taro Tsubomura

A series of heteroleptic platinum(II) complexes (1a-3a and 1b-3b) bearing a dicarbene ligand and a cyclometalated bidentate ligand have been prepared. Two of the complexes (1a and 3a) were characterized by X-ray diffraction analyses, confirming the square-planar structures. Detailed spectroscopic properties of the complexes have been studied, and two complexes, 3a and 3b bearing a carbene chela...

Journal: :Applied Organometallic Chemistry 2023

The design and research of luminescent volatile organic compound (VOC) fluorescent sensing materials are great significance challenge. We report herein the ligand substitution reaction VOC new heteroleptic [Cu(P ˄ P)N 2 ] + type copper(I) complexes. Firstly, three complexes 1 – 3 were designed by utilizing a chelate diphosphine 4,5‐bis(diphenylphosphino)‐9,9‐dimethylxanthene (Xantphos) synthesi...

Journal: :Journal of the American Chemical Society 2010

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