A5000984436- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Metal complexes synthesis and properties
- Organometallic Complex Synthesis and Catalysis
- Organophosphorus compounds synthesis
- Synthesis and characterization of novel inorganic/organometallic compounds
- Asymmetric Hydrogenation and Catalysis
- Metalloenzymes and iron-sulfur proteins
- Nanocluster Synthesis and Applications
- Magnetism in coordination complexes
- Lanthanide and Transition Metal Complexes
- Crystallography and molecular interactions
- Crystal structures of chemical compounds
- Metal-Organic Frameworks: Synthesis and Applications
- Supramolecular Chemistry and Complexes
- Electrocatalysts for Energy Conversion
- Chemical Synthesis and Analysis
- Molecular Sensors and Ion Detection
- Organometallic Compounds Synthesis and Characterization
- Phosphorus compounds and reactions
- Synthesis and Reactivity of Sulfur-Containing Compounds
- Coordination Chemistry and Organometallics
- Synthesis and Characterization of Heterocyclic Compounds
- Catalytic Alkyne Reactions
- Advanced Nanomaterials in Catalysis
A.E. Arbuzov Institute of Organic and Physical Chemistry
2015-2024
Russian Academy of Sciences
2011-2020
Kazan Scientific Center
2014-2020
Universität Greifswald
2001-2007
Abstract Eight‐membered cyclic functional bisphosphines, namely 1,5‐di‐aryl‐3,7‐di(2‐pyridyl)‐1,5‐diaza‐3,7‐diphosphacyclooctanes (aryl=2‐pyridyl, m ‐tolyl, p diphenylmethyl, benzyl, ( R )‐(+)‐(α‐methyl)benzyl), with 2‐pyridyl substituents on the phosphorus atoms have been synthesized by condensation of 2‐pyridylphosphine, formaldehyde, and corresponding primary amine. The structures some these bisphosphines investigated X‐ray crystallography. readily form neutral P,P‐chelate complexes [(κ 2...
A novel type of cyclic P,N-ligands, pyridyl containing phospholanes, has been synthesized in a moderate yield by the reaction primary phosphines with 1,4-dichlorobutane superbasic medium. series homo tetranuclear octahedral Cu4I4L2, dinuclear tetrahedral Cu2I2L3, and "head-to-tail" Cu2I2L2 luminescent complexes these ligands were obtained. All compounds characterized using range spectroscopic computational techniques, case some Cu4I4L2 Cu2I2L3 complexes, single crystal X-ray diffraction. The...
A series of amido Ca and Yb(II) complexes LM[N(SiMe3)2](THF) (1Yb, 1-4Ca) coordinated by amidine-amidopyridinate ligands L1-4 were synthesized via a transamination reaction between proligands L1-4H bisamido M[N(SiMe3)2]2(THF)2 (M = Yb, Ca). The reactions Yb[N(SiMe3)2]2(THF)2 with L2H-L4H containing CF3 C6H4F fragments do not allow for preparing the target complexes, while analogues in good yields. Complexes 1Yb 1-4Ca evaluated as precatalysts hydrophosphination styrene, p-substituted...
The unique L2Cu6I6 complexes containing two Cu3I3 units have been obtained via reaction of 1,5-diaza-3,7-diphosphacyclooctanes bearing ethylpyridyl substituents at phosphorus atoms with an excess copper iodide. structure one the was confirmed by X-ray diffraction. It shown that can exist in crystalline phases different parameters unit cell, which were detected PXRD data analyses. solvent-free display rare solid-state white emission room temperature, is observed due to presence broad bands...
Herein we report the synthesis of a stimuli-responsive binuclear Au(I) complex based on 1,5-bis(p-tolyl)-3,7-bis(pyridine-2-yl)-1,5-diaza-3,7-diphosphacyclooctane ligand, which is novel template for design luminescent metal complexes. In solid state, obtained gives three different crystalline phases, were characterized by XRD analysis. It was also found that phases can be reversibly interconverted recrystallization or solvent vapour treatment. The emission these varies in 500–535 nm range....
For the first time, 3(X + M)LCT origin of both lowest excited triplet states dual-emissive tetranuclear copper(I)-iodide complexes with octahedral Cu4I4 core has been revealed using quantum chemical computations in contrast to conventional assignment lowest-energy emission 3CC state. The unusual thermochromic behavior shown for dual from these clusters stabilized by P,N-ligands allows optical ratiometric thermal sensing a broad temperature range.
Abstract: Rational design of title ligands and their transition metal complexes gave the high effective catalysts for hydrogen economy perspective “stimuli-responsive” luminescent materials. Together with above novel cyclic aminomehtylphospine have showed a row unpredicted properties like spontaneous formation macrocyclic molecules, unique reversible slitting macrocycles on to smaller cycles, rapid interconversion isomers catalyzed by both acids transitional metals, bridging behavior usually...
A novel type of 14-membered cyclic polyphosphine, namely 1,8-diaza-3,6,10,13-tetraphosphacyclotetradecanes 2a–4ahas been synthesized by the condensation 1,2-bis(phenylphosphino)ethane, formaldehyde and alkylamines (isopropylamine, ethylamine cyclohexylamine) as a RRRR/SSSS-stereoisomer. The structure macrocycle 2a was investigated NMR-spectroscopy X-ray crystal analysis. unique reversible processes macrocycles 2a–4a splitting onto corresponding rac- (2b–4b) meso- (2c–4c) stereoisomers...
Abstract The interaction of a series [Ni(P R1 2 N R2 ) ] 2+ complexes 1 – 4 (where P =1,5‐R ‐3,7‐R ‐1,5‐diaza‐3,7‐diphosphacyclooctane; R = o‐ Py, Ph; =CHPh , p‐ Tol) with H is reversible yielding the products heterolytic splitting dihydrogen in metal coordination sphere ‐ [NiH(P )(P H)] . Experiments conducted parahydrogen allowed to see signal at about −4 ppm corresponding metal‐bound nickel complex [Ni(η −H Ph CHPh2 ( 3‐H short‐living non‐classical intermediate, which so far has been...
Covalent self-assembly of novel 18- and 20-membered P,N-corands as single stereoisomer is described.
A dinuclear Au(<sc>i</sc>) complex with cyclic diphosphine is a versatile platform for different luminescence responses to nucleophilic and electrophilic molecules in solutions.
The synthesis, structural and photophysical characterization, theoretical study of tetranuclear copper(<sc>i</sc>) cubane-type Cu<sub>4</sub>I<sub>4</sub> clusters with different 10-(aryl)phenoxarsine ligands are presented.
Tertiary diethylpyridylphosphine was synthesized by the reaction of pyridylphosphine with bromoethane in a suberbasic medium. The phosphine copper(I) iodide led to formation coordination polymer, which, according X-ray diffraction data, has an intermediate structure copper-halide core between octahedral and stairstep geometries Cu4I4 clusters. obtained polymer exhibits green emission solid state, which is caused 3(M+X)LCT transitions. heating up 138.5 °C results its monomerization new...
1,5-bis(R)-3,7-bis[2-(pyridine-2′-yl)ethyl)-1,5-diaza-3,7-diphosphacyclooctanes 1 and 2 their copper(I) complexes 3 4 were developed. The butterfly-shaped copper-iodide core unusual P,N-chelate P,P-bridged coordination mode of the heterocyclic ligand in dinuclear revealed. Complexes display emission green range spectra, with lifetimes a microsecond domain quantum yields luminescence solid-state up to 38 %. Thermochromic effects found for phosphorescence solutions are ascribed rigidochromism.
A series of novel charged disilver(I) complexes with pyridyl-containing phospholanes was synthesized. These were characterized using a range spectroscopic techniques and single-crystal powder X-ray diffraction. The demonstrate solid-state near-infrared (NIR) luminescence (765–902 nm) that is unique for dinuclear AgI complexes. Combined spectroscopic/quantum chemical analysis suggests the NIR 4–6 in solid state mainly due to crystal packing effects.
A flexible bidentate cyclic phosphine, namely, 1,5-bis(p-tolyl)-3,7-bis(pyridin-2-yl)-1,5-diaza-3,7-diphosphacyclooctane (PNNP), was used as a template to construct family of binuclear heteroleptic phosphine alkynyl complexes [PNNP(AuC2R)2], with R = Ph, C6H10OH, C5H8OH, (CH3)2COH, Ph2COH. All obtained were characterized by CHN elemental analysis, NMR spectroscopy, and single-crystal X-ray analysis. It found that the gold(I) demonstrate different organization crystal structure depending on...