A ring of grids: a giant spin-crossover cluster
نویسندگان
چکیده
Mononuclear and icosanuclear spin-crossover complexes, [Fe] [Fe 20 ], were synthesized. has a bis-chelate structure, while ] ring-shape structure comprising four [2 × 2] grid moieties mononuclear units.
منابع مشابه
Understanding Spin Crossover: A Contribution
Eleven iron(II) 1D coordination polymers with the general formula [FeLeq(Lax)]· solvent were synthesised and characterised, where Leq = {diethyl (E,E)-2,2′-[1,2-phenylbis(iminomethylidyne)]bis[3-oxobutanoate] (2-)-N,N′,O,O′} (L1) and {3,3′-[1,2-phenylbis(iminomethylidyne)]bis[pentane-2,4-dione] (2-)-N,N′,O,O′} (L2); Lax = 4,4′-bipyridine (bipy), 1,2-bis(4-pyridyl)ethane (bpea) and 1,3-bis(4-pyr...
متن کاملa comparison of linguistic and pragmatic knowledge: a case of iranian learners of english
در این تحقیق دانش زبانشناسی و کاربردشناسی زبان آموزان ایرانی در سطح بالای متوسط مقایسه شد. 50 دانش آموز با سابقه آموزشی مشابه از شش آموزشگاه زبان مختلف در دو آزمون دانش زبانشناسی و آزمون دانش گفتار شناسی زبان انگلیسی شرکت کردند که سوالات هر دو تست توسط محقق تهیه شده بود. همچنین در این تحقیق کارایی کتابهای آموزشی زبان در فراهم آوردن درون داد کافی برای زبان آموزان ایرانی به عنوان هدف جانبی تحقیق ...
15 صفحه اولA Novel Crossover Operator for Genetic Algorithms: Ring Crossover
The genetic algorithm (GA) is an optimization and search technique based on the principles of genetics and natural selection. A GA allows a population composed of many individuals to evolve under specified selection rules to a state that maximizes the “fitness” function. In that process, crossover operator plays an important role. To comprehend the GAs as a whole, it is necessary to understand ...
متن کاملa decsription of persian deixis
the significance of the study of deixis was then mentioned. the purpose of the present study from the outset was to provide a comprehensive overview of all kinds of deixis in persian, describing and defining each in true while considering them structurally and semantically. chapter two consisted of two main parts. a review of the english studies in this respect, besides presenting persian liter...
15 صفحه اولA Case of Giant Sebaceoma
Sebaceoma is a benign tumor with sebaceous differentiation. It usually presents as a yellowish papule or nodule on the face and scalp. This is a report of a 27-year-old-woman who presented with a giant, 6cm×4.5 cm exophytic tumor on her head. Clinically, we considered several diseases; however, the histological and immunohistochemical features matched those of sebaceoma. The lesion was excised ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Chemical Communications
سال: 2021
ISSN: ['1359-7345', '1364-548X']
DOI: https://doi.org/10.1039/d1cc04346c