نتایج جستجو برای: triple metal

تعداد نتایج: 244584  

2017
Zhengbang Wang Alfred Błaszczyk Olaf Fuhr Stefan Heissler Christof Wöll Marcel Mayor

One of the dream reactions in polymer chemistry is the bottom-up, self-assembled synthesis of polymer fabrics, with interwoven, one-dimensional fibres of monomolecular thickness forming planar pieces of textiles. We have made a major step towards realizing this goal by assembling sophisticated, quadritopic linkers into surface-mounted metal-organic frameworks. By sandwiching these quadritopic l...

Journal: :Inorganic chemistry 2007
Natalia Dalla-Favera Josef Hamacek Michal Borkovec Damien Jeannerat Gianfranco Ercolani Claude Piguet

Statistical mechanics predicts that the design of pure organized heteropolymetallic chains of metal ions bound to linear receptors depends on controlled deviations from the mixing rule DeltaE(MiMj) = 1/2 (DeltaE(MiMi) + DeltaE(MjMj)), whereby DeltaE(MiMj) is the intramolecular intermetallic interaction between neighboring metal i and metal j along the receptor. A thorough investigation of linea...

The p-i-n carbon nanotube (CNT) devices suffer from low ON/OFF current ratio and small saturation current. In this paper by band bending engineering, we improved the device performance of p-i-n CNT field effect transistors (CNTFET). A triple gate all around structure is proposed to manage the carrier transport along the channel. We called this structure multi-segment gate (MSG) CNTFET. Band to ...

Journal: :bulletin of the iranian mathematical society 2011
j. pashazadeh yu. m. movsisyan

Journal: :Molecular pharmacology 2008
Nadine Dragin Zhanquan Shi Rajat Madan Christopher L Karp Maureen A Sartor Chi Chen Frank J Gonzalez Daniel W Nebert

Crossing the Cyp1a1/1a2(-/-) double-knockout mouse with the Cyp1b1(-/-) single-knockout mouse, we generated the Cyp1a1/1a2/1b1(-/-) triple-knockout mouse. In this triple-knockout mouse, statistically significant phenotypes (with incomplete penetrance) included slower weight gain and greater risk of embryolethality before gestational day 11, hydrocephalus, hermaphroditism, and cystic ovaries. Or...

2013
Heinrich Nöth M artina Thomann

Cadmium bis(tetrahydroborate) has been prepared from dimethyl cadmium and H3B T H F in tetrahydrofuran. Low temperature ll3Cd N M R spectra recorded for THF, monoglyme and diglyme solutions show a septet with l/ ( ll3Cd'H) = 273 Hz. This proves that the BH4“ groups are bound to the metal centre via triple hydride bridges. Reaction o f Cd(BH4) 2 with LiBH4 yields LiCd(BH4) 3 quantitatively in di...

2009
Jinfang Zhang

In the title compound, [Cu(C(2)N(3))(2)(C(13)H(14)N(2))](n), the Cu(II) atom, located on an inversion centre, adopts a distorted octa-hedral coordination by six N atoms, two from 1,3-di-4-pyridylpropane and four from dicyanamide ligands, with significantly different Cu-N distances. The metal centres are linked in an unusual triple-bridged mode into chains parallel to [101].

Journal: :Inorganic chemistry 2008
Ming Xue Shengqian Ma Zhao Jin Roxanna M Schaffino Guang-Shan Zhu Emil B Lobkovsky Shi-Lun Qiu Banglin Chen

A microporous metal-organic framework 1 Zn 2(CNC) 2(DPT).G [CNC = 4-Carboxycinnamic; DPT = 3,6-Di-4-pyridyl-1,2,4,5-tetrazine; G = guest molecules] was synthesized and structurally characterized by a triply interpenetrated primitive cubic net with 1D pores of about 3.7 A. 1 is highly robust enforced by triple framework interpenetration through weak van der Waals interactions, thus the activated...

Journal: :Organic & biomolecular chemistry 2014
Sergej Tamke Constantin-G Daniliuc Jan Paradies

The frustrated Lewis pair (FLP) mediated hydrosilylation of pentafulvenes is described yielding allyl silanes with high regioselectivity in excellent yields. While phenyl substituted allyl silanes undergo B(C6F5)3-mediated rearrangement to vinyl silanes, dimethyl derivatives experience FLP-catalyzed hydrogenation followed by an unprecedented protodesilylation. This observation allowed the metal...

Journal: :Dalton transactions 2007
Cao-Yuan Niu Ben-Lai Wu Xian-Fu Zheng Hong-Yun Zhang Zhong-Jun Li Hong-Wei Hou

Reaction of AgPF(6) with the asymmetric ligand 1,6-dihydro-2-methyl-6-oxo-(3,4'-bipyridine)-5-carbonitrile (1), afforded a significant silver coordination polymer {[Ag(2)(1)(3)](2).(CH(3)OH)(3).(PF(6))(4)}(n) (2) with unique 1D twofold interpenetrating metal-organic frameworks constructed by 1D triple helical chains with nanosized cages hosting counterions as guests. This compound exhibits high...

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