An EPR/ENDOR study of the reduction products of symmetrical isomers of dipyridylacetylene
文献信息
The reduction potentials of the three symmetrical isomers (para–para, ortho–ortho and meta–meta) of dipyridylacetylene were measured by cyclic voltametry. These compounds were reacted on alkali metal mirrors and the resulting radical anions were studied by electron paramagnetic resonance/electron–nuclear double resonance/triple resonance spectroscopies. The reduction products were identified after comparison of the measured hyperfine couplings with those predicted by density functional theory calculations. The mono-radical anion was observed for the two former isomers [coupling with the counter ion was detected for the ion pair (ortho–ortho)-39K+]; the third isomer led to the radical anion of dipyridylethylene.
相关文献
Structure and magnetism of the first strictly dinuclear compound containing paramagnetic 3d and 5f metal ions. Major influence of the CuII ion coordination on the exchange CuII–UIV interaction
Lionel Salmon, Pierre Thuéry, Eric Rivière, Jean-Jacques Girerd, Michel Ephritikhine
DOI: 10.1039/B212635D
Porphyrin hetero-dimer as charge separating system for photocurrent generation
Akihiro Nomoto, Hiroaki Mitsuoka, Hidekane Ozeki, Yoshiaki Kobuke
DOI: 10.1039/B300456B
Cationic benzyl zirconium heteroscorpionates: synthesis and characterization of a novel ethylene polymerisation catalyst showing an unusual temperature dependent polymerisation mechanism
Stefano Milione, Cosimo Montefusco, Tomas Cuenca, Alfonso Grassi
DOI: 10.1039/B301997G
Highly regio- and stereoselective four-component iodoamination of Se-substituted allenes. an efficient synthesis of N-(3-organoseleno-2-iodo-2(Z)-propenyl) acetamides
Xueshi Hao, Xian Huang
DOI: 10.1039/B300879G
Reversible C–C bond formation: solid state structure of the aldol-like addition product of adamantanone to a 1,5-diazapentadienyllithium, and its solution state retro-aldol dissociation
Lee-Jon Ball, Anthony P. Dickie, Francis S. Mair, David A. Middleton, Robin G. Pritchard
DOI: 10.1039/B211745B
A simple and efficient method for synthesis of 5-substituted 2′-deoxyuridine nucleosides using metal–halogen exchange reaction of 5-iodo-2′-deoxyuridine sodium salt
Mariko Aso, Toshiyuki Kaneko, Morihide Nakamura, Noboru Koga, Hiroshi Suemune
DOI: 10.1039/B301425H
Halogen-induced selectivity in heterogeneous epoxidation is an electronic effect—fluorine, chlorine, bromine and iodine in the Ag-catalysed selective oxidation of ethene
Richard M. Lambert, Rachael L. Cropley, Alifiya Husain, Mintcho S. Tikhov
DOI: 10.1039/B302620E
Identification of novel sulfur-containing derivatives of chlorophyll a in a Recent sediment
Angela H. Squier, Dominic A. Hodgson, Brendan J. Keely
DOI: 10.1039/B212243J
Polyoxometalate-catalysed epoxidation of 1-octene with hydrogen peroxide in microemulsions coupled with ultrafiltration
Arnold Lambert, Pawel Plucinski, Ivan V. Kozhevnikov
DOI: 10.1039/B300494P
Fluoride-induced chemiluminescent decomposition of 1,2-dioxetanes bearing a phenyl moiety substituted with a methyl having an electron-withdrawing group
Masakatsu Matsumoto, Toshiyuki Mizuno, Nobuko Watanabe
DOI: 10.1039/B210857G
您可能还喜欢
6-氯-2H-1,4-苯并噁嗪-3(4H)-酮(CAS号:7652-29-1)应用于哪些行业?
6-氯-2H-1,4-苯并噁嗪-3(4H)-酮主要应用于医药、农药和聚合物等领域。在医药领域,该化合物可用于合成抗菌药物;在农药领域,可用作杀虫剂的中间体;在聚...
活性氧化铝(CAS号:1302-74-5)应用于哪些行业?
活性氧化铝广泛应用于医药、聚合物、传感器、半导体和催化等领域。在医药行业,活性氧化铝用作吸附剂和干燥剂,有助于去除杂质和水分。在聚合物行业,它用作增白剂和抗结块...
什么是硅胶(CAS号:112926-00-8)?
硅胶(Silica gel, pptd.,cryst.-free)是一种无定形、多孔的硅酸盐材料,主要成分为二氧化硅(SiO₂)。其结构由硅氧四面体构成,通过酸...
二乙基甲基一氢硅烷(CAS号:760-32-7)的主要用途是什么?
二乙基甲基一氢硅烷主要用于有机合成、表面处理以及作为溶剂。它还被用作合成其他硅烷化合物的原料,以及在涂料、粘合剂和密封剂中的应用。
在合成中是否有N-花生四烯酰基甘氨酸(CAS号:179113-91-8)的替代品?
在合成过程中,可以考虑使用类似结构的化合物作为替代品,例如N-亚油酰基甘氨酸或N-花生二烯酰基甘氨酸。这些替代品在结构上有类似的双键位置,但可能具有不同的物理化...
在合成中是否有1-(4-甲氧基苯基)丙烷-1,2-二酮(CAS号:10557-27-4)的替代品?
在合成过程中,可以考虑使用类似结构的化合物作为替代品,例如1-(3-甲氧基苯基)丙烷-1,2-二酮或1-(4-羟基苯基)丙烷-1,2-二酮。这些替代品具有相似的...
N-(4-氨基-1-苄基-3-羟基-5-苯基戊基)-3-甲基-2-(2-氧代四氢嘧啶-1-基)-丁酰胺 5-氧代吡咯烷-2-甲酸(CAS号:192726-06-0)通常如何合成?
该化合物通常通过一系列复杂的有机合成步骤获得。首先,通过芳香族化合物的羟基化反应获得羟基化产物,然后通过酰化反应形成酰胺中间体,最后通过环化反应得到目标产物。常...
(S)-2-氨基-3-喹啉-2-丙酸(CAS号:161513-46-8)的市场或研究趋势如何?
该化合物作为生物活性化合物,尤其是在药物化学领域表现出色。近年来,随着对新型抗炎、抗病毒和抗癌药物的研究增加,其市场和研究趋势持续增长。此外,其在神经科学领域的...
核黄素磷酸钠(CAS号:130-40-5)安全吗?
核黄素磷酸钠在常规使用条件下安全,但高剂量可能引起刺激性反应。操作时需佩戴防护手套和护目镜,避免吸入粉尘。若接触皮肤或眼睛,应立即用大量清水冲洗。急救时需根据接...
盐酸丙胺卡因杂质A(EP) 标准品(CAS号:19281-31-3)通常如何合成?
盐酸丙胺卡因杂质A(EP) 标准品可通过重氮化反应和随后的酰胺化反应合成。首先,利用氯化反应将苯环上的氢原子转化为氯原子,然后通过芳香族重氮化反应引入氨基,最后...
来源期刊
Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.










![1-Naphthalenesulfonic acid, 2-[(2-hydroxy-1-naphthalenyl)azo]-, bariumsalt (2:1) structure 1-Naphthalenesulfonic acid, 2-[(2-hydroxy-1-naphthalenyl)azo]-, bariumsalt (2:1) structure](https://cnstatic.chemtradehub.com/structs/110/1103-38-4-0b33.webp)



