4-pyridyl) -1
1:1 Cocrystal of 2,5 di 4 pyridyl 1,3,4 oxadiazole and hydroquinone
... Hydrogen bonding is important in the areas of crystal engi- neering, supramolecular chemistry, materials science and biological recognition (Desiraju, 1989; Jeffrey & Saenger, 1991; Holman et al., 2001). Recently, ...
8
Bis[2,4 bis(2 pyridyl κN) 6 (4 pyridyl) 1,3,5 triazine κN3]ruthenium(II) bis(hexafluorophosphate)
... Our aim involves the synthesis and characterization of bridging ligands containing two non-equivalent binding sites. Our interests are particularly focused on preparation of such ligands capable of binding an Ru II ion ...
9
2,5 Di 4 pyridyl 1,3,4 oxadiazole–succinic acid (2/1)
... A mixture of 2,5-di-4-pyridyl-1,3,4-oxadiazole (112 mg, 0.5 mmol) (Dong et al., 2002) and succinic acid (29 mg, 0.25 mmol) was recrys- tallized from methanol and water in 70% yield (98 mg), from which a ...
6
4 Amino 3,5 bis(4 pyridyl) 1,2,4 triazole
... compound, 4-amino-3,5-bis(4-pyridyl)-1,2,4- triazole, (I), an angular dipyridine ligand, has attracted our attention in connection with structural control of novel organic/inorganic supramolecular ...
8
Cocrystal of 2,5 di 4 pyridyl 1,3,4 oxadiazole and malonic acid (1/1)
... A mixture of 2,5-bis(4-pyridyl)-1,3,4-oxadiazole (112 mg, 0.5 mmol) (Wang, Tang, Qin & Duan, 2005) and malonic acid (52 mg, 0.5 mmol) was recrystallized from methanol and water in about 77% yield (126 ...
7
2,5 Bis(4 pyridyl) 1,3,4 thiadiazole
... due to their application as the building blocks in supramol- ecular assemblies to produce a wide variety of solid-state coordination architectures (Blake et al., 1999). The nature of such ligands (e.g. the length and the ...
5
5 (4 Pyridyl) 1,3,4 oxadiazole 2(3H) thione
... groups of the oxadiazole rings and the pyridyl N-atom acceptors. These bonds connect adjacent molecules to form a one-dimensional (1D) hydrogen-bonded chain, as shown in Fig. 2. The relevant geometrical details ...
5
3,6 Di 4 pyridyl 1,4 dihydro 1,2,4,5 tetrazine
... Data collection: SMART Bruker, 2000; cell refinement: SMART; data reduction: SAINT Bruker, 2000; programs used to solve structure: SHELXS97 Sheldrick, 2008; programs used to refine struc[r] ...
5
C—H⋯N contacts in 4 phenyl 3 (4 pyridyl) 4H 1,2,4 triazole
... Extensive studies have been carried out in recent years on substituted 1,2,4-triazoles. The immense interest in this class of compounds results from their chemical, biological and phar- macological signi®cance. ...
7
4 (4 Methylphenyl) 3 (4 pyridyl) 4H 1,2,4 triazole
... 1,2,4-triazol-1-ylmethyl)-1,3-phenylene]bis(2-methylpropio- nonitrile), and letrozole, 1-[bis(4-cyanophenyl)methyl]-1,2,4- triazole (Bonte, 2000; Lùnning, 1996; Lùnning, 2001). These compounds are ...
7
Bis[μ 1 (2 pyridyl κN)ethanone 4 phenylthiosemicarbazonato κ2N1,S]bis[iodomercury(II)]
... The geometry of both Hg atoms is between trigonal bi- pyramidal and square pyramidal, but closer to the latter with some degree of distortion. Atoms N3, N4, S1 i (symmetry code in Table 1) and I1 occupy the basal ...
8
Novel and Effective Pyridyl Substituted 1, 2, 4-Triazole as Corrosion Inhibitor for Mild Steel in Acid Solution
... Electrochemical impedance spectroscopy is a significant method for investigation of protective properties of organic inhibitors on metals. The Nyquist plots obtained for mild steel in 1M HCl in the absence and presence ...
20
3,6 Di 2 pyridyl 4 {[(2 pyridyl)carbonyldiazenyl](2 pyridyl)methyl} 1H 1,2,4,5 tetrazine: the proton assisted hydrolysis product of 3,6 di 2 pyridyl 1,2,4,5 tetrazine (dptz)
... O1 0.0435 (19) 0.0626 (19) 0.0394 (16) −0.0068 (16) −0.0033 (13) −0.0025 (13) N1 0.060 (3) 0.060 (2) 0.032 (2) −0.012 (2) 0.0011 (17) −0.0101 (17) N2 0.037 (2) 0.049 (2) 0.0304 (19) 0.0017 (17) 0.0008 (15) −0.0083 (16) ...
8
(ST2 ), 1 – (3’- pyridyl) – 1 –phenyl thiourea (ST 3), 1–(2’- pyridyl)–3–phenyl thiourea (ST4 ). Values of inhibition efficiency
... obtained from the two methods are in good agreement with each other and are dependent upon the concentration of inhibitor and acid. The difference in the inhibition behaviour of the compounds have been explained in terms ...
10
1 (2 Pyridyl)pyrrolidine 2 thione
... Part of the crystal structure of (2), showing the ± stacking along the b axis. Ring-centroid separation distances marked with a hash (#) or asterisk (*) are 3.9141 (12) and 4.0815 (13) AÊ, respectively. Symmetry codes ...
6
Dichloromethyl[1 (2 pyridyl)ethanone benzoylhydrazonato]tin(IV)
... Sodium methoxide (2.40 ml, 0.002 mol) dissolved in methanol was added to an anhydrous methanol solution containing 2,6-acetyl- pyridinebenzhydrazone (0.479 g, 0.002 mol) with stirring under an argon atmosphere. The ...
8
1,5 Bis(4 chlorophenyl) 3 (4 pyridyl)pentane 1,5 dione
... The title compound was synthesized by the reaction of equivalent amounts of (E)-1-(4-chlorophenyl)-3-(pyridin-4-yl)prop-2-en-1-one (0.1 mmol), isonicotinohydrazide (0.1 mmol) and ...
7
NMR STUDIES OF SOME Zn AND Cd COORDINATION COMPOUNDS BEARING 1,2-CICLOHEXANEDIONEDIOXIME
... the 1 H NMR spectra of complexes 4, 7-9 and 10, containing bpe as bridging ligand, showed almost a complete similarity to the corresponding region in the 1 H NMR spectrum of free bpe, both by the ...
10
catena (Bis(μ2 1,3 bis(4 pyridyl)propane N,N′) diaqua cobalt(II)) dinitrate 1,3 bis(4 pyridyl)propane monohydrate
... C21 0.0604 (17) 0.087 (2) 0.0394 (14) −0.0345 (17) 0.0055 (12) 0.0021 (14) C22 0.0508 (15) 0.0427 (15) 0.0358 (13) −0.0169 (12) 0.0044 (11) −0.0089 (11) C23 0.0582 (16) 0.0429 (15) 0.0428 (14) −0.0208 (13) 0.0026 (12) ...
13
4 (4 tert Butylphenyl) 3,5 di 2 pyridyl 4H 1,2,4 triazole
... Data collection: SMART Bruker, 1998; cell re®nement: SMART; data reduction: SAINT Bruker, 1998 and SHELXTL Bruker, 1997; programs used to solve structure: SHELXS97 Sheldrick, 1997; progr[r] ...
7