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[PDF] Top 20 5,6 Dioxo 1,10 phenanthrolin 1 ium bromide at 120 K

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5,6 Dioxo 1,10 phenanthrolin 1 ium bromide at 120 K

5,6 Dioxo 1,10 phenanthrolin 1 ium bromide at 120 K

... Because all of the atoms lie on crystallographic mirror planes of the space group Pnma, the constituent ions of (I) are found in well de®ned layers parallel to (010) (Fig. 2), b/2 [3.14890 (5) AÊ] apart. As shown ... See full document

10

1 [2 (Di­carb­oxy­methyl) 3 oxo­cyclo­pent 4 en 1 yl]­pyrrolidin 1 ium bromide hydrate

1 [2 (Di­carb­oxy­methyl) 3 oxo­cyclo­pent 4 en 1 yl]­pyrrolidin 1 ium bromide hydrate

... of 6-hydroxy-2,2-dimethyl-5-[2-oxo-5-(pyrrolidin-1-yl)cyclopent- 3-en-1-yl]- 4H-1,3-dioxin-4-one, (I), with hydrobromic acid are strongly dependent on the nature of the ...with ... See full document

10

Tris(3,4,7,8 tetra­methyl 1,10 phenanthrolin 1 ium) hexa­cyanidocobaltate(III) penta­hydrate

Tris(3,4,7,8 tetra­methyl 1,10 phenanthrolin 1 ium) hexa­cyanidocobaltate(III) penta­hydrate

... and 1.151 (2) Å, respectively, while the Co-CN bonds are almost linear with the maximum deviation from linearity of 2.9°. The cations and anions are linked alternatively through hydrogen bonds (Table 1), π···π ... See full document

13

4 (2 Meth­­oxy­phen­yl)piperazin 1 ium 6 chloro 5 iso­propyl 2,4 dioxopyrimidin 1 ide

4 (2 Meth­­oxy­phen­yl)piperazin 1 ium 6 chloro 5 iso­propyl 2,4 dioxopyrimidin 1 ide

... C10 0.0315 (8) 0.0360 (8) 0.0472 (9) 0.0024 (6) 0.0044 (7) 0.0029 (7) C8 0.0348 (8) 0.0355 (8) 0.0410 (8) 0.0023 (6) 0.0019 (6) −0.0025 (6) C3 0.0374 (8) 0.0347 (9) 0.0734 (13) 0.0048 (7) ... See full document

10

Crystal structures of 4 phenyl­piperazin 1 ium 6 chloro 5 ethyl 2,4 dioxopyrimidin 1 ide and 4 phenyl­piperazin 1 ium 6 chloro 5 iso­propyl 2,4 dioxopyrimidin 1 ide

Crystal structures of 4 phenyl­piperazin 1 ium 6 chloro 5 ethyl 2,4 dioxopyrimidin 1 ide and 4 phenyl­piperazin 1 ium 6 chloro 5 iso­propyl 2,4 dioxopyrimidin 1 ide

... (II): 6-Chloro-5-isopropyluracil (377 mg, 2.0 mmol), 1-phenylpiperazine (325 mg, ...to 5 ml and allowed to stand at room temperature overnight to yield compound (II) as colourless crystals ... See full document

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Crystal structure of benz­yl(meth­yl)phen­yl[(piperidin 1 ium 1 yl)meth­yl]silane bromide

Crystal structure of benz­yl(meth­yl)phen­yl[(piperidin 1 ium 1 yl)meth­yl]silane bromide

... Br , contains a chiral silicon atom but crystallizes as a racemate. The C—Si—C bond angles in the range of 103.64 (8)–111.59 (9) are usual for tetrahedral geometry. The piperidine ring shows a regular chair confor- ... See full document

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2,9 Di­methyl 1,10 phenanthrolin 1 ium 2,4,5 tri­carb­­oxy­benzoate monohydrate

2,9 Di­methyl 1,10 phenanthrolin 1 ium 2,4,5 tri­carb­­oxy­benzoate monohydrate

... The asymmetric unit of (I) (Fig. 1) is comprised of a 2,9-dimethyl-1,10-phenanthrolinium cation, a trihydrogen-1,2,4,5- benzenetetracarboxylate anion and a solvent water molecule. The proton transfer from a ... See full document

10

6 (2 Hydro­xy­ethyl)­benzo­[f] 1,7 naphthyridin 6 ium bromide

6 (2 Hydro­xy­ethyl)­benzo­[f] 1,7 naphthyridin 6 ium bromide

... The title compound was synthesized from benzo[f][1,7]naphthyridine and 2-bromoethanol. The mixture containing 1.80 g (10 mmol) of benzo[f][1,7]naphthyridine and 1.25 g (10 mmol) of 2-bromoethanol was ... See full document

9

1 [6 (Hy­droxy­meth­yl) 2 pyrid­yl] 3 (2,4,6 tri­methyl­benz­yl) 1H imidazol 3 ium bromide

1 [6 (Hy­droxy­meth­yl) 2 pyrid­yl] 3 (2,4,6 tri­methyl­benz­yl) 1H imidazol 3 ium bromide

... [6-(1H-Imidazol-1-yl)pyridin-2-yl]methanol was prepared with the reported methods (Hosseinzadeh et al., 2006). The title compound was synthesized by dissolving ... See full document

7

1,10 Phenanthrolin 1 ium 2 carb­oxy 6 nitro­benzoate

1,10 Phenanthrolin 1 ium 2 carb­oxy 6 nitro­benzoate

... in 10 ml) and 1,10-phenanthroline ...in 10 ml). The reaction mixture was stirred at room temperature for 10 min, after which the crystalline product was separated by filtration ... See full document

9

Bis(6 nitro 1,10 phenanthrolin 1 ium) 2,5 di­carb­­oxy­terephthalate

Bis(6 nitro 1,10 phenanthrolin 1 ium) 2,5 di­carb­­oxy­terephthalate

... supramolecular networks because it can act not only as an hydrogen bond acceptor but also as an hydrogen bond donor, depending upon the number of deprotonated carboxylate groups present. Proton-transfer compounds of PMA ... See full document

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1:05 – 1:35 Period 5 (30 minutes) 1:40 – 2:10 Period 6 (30 minutes)

1:05 – 1:35 Period 5 (30 minutes) 1:40 – 2:10 Period 6 (30 minutes)

... • All students must sign the back of the Policies to be Reviewed for Student Signature packet. • Tear off signature page and return[r] ... See full document

25

Crystal structure and biological evaluation of 4 methyl­morpholin 4 ium 1,3 di­methyl 2,6 dioxo 5 (2,4,6 tri­nitro­phen­yl) 1,2,3,6 tetra­hydro­pyrimidin 4 olate

Crystal structure and biological evaluation of 4 methyl­morpholin 4 ium 1,3 di­methyl 2,6 dioxo 5 (2,4,6 tri­nitro­phen­yl) 1,2,3,6 tetra­hydro­pyrimidin 4 olate

... membered ring of the 4-methylmorpholin-4-ium cation has a chair conforma- tion. In the crystal, the cation and anion are linked via an N—H O hydrogen bond. The cation–anion units are linked by a number of C—H O ... See full document

9

4,7 Phenanthrolin 4 ium perrhenate

4,7 Phenanthrolin 4 ium perrhenate

... A mixture of 4,7-phenanthroline (90.0 mg, 0.5 mmol) and potassium perrhenate (145.0 mg, 0.5 mmol) was dissolved in tetrahydrofuran (20 ml) under nitrogen. The reaction mixture was stirred overnight at room temperature. ... See full document

6

2 Amino 5 chloro­pyrimidin 1 ium hydrogen maleate

2 Amino 5 chloro­pyrimidin 1 ium hydrogen maleate

... , the 2-amino-5-chloro- pyrimidinium cation is protonated at one of its pyrimidine N atoms. In the roughly planar (r.m.s. deviation = 0.026 A ˚ ) hydrogen malate anion, an intramolecular O—H O hydrogen bond ... See full document

6

4 Methyl­piperazin 1 ium 2 amino 5 iodo­benzoate

4 Methyl­piperazin 1 ium 2 amino 5 iodo­benzoate

... ring. Atom H1B is involved in an intramolecular N1— H1B O2 hydrogen bond, while atom H1A is responsible for the formation of an N1—H1A O1 i hydrogen bond (see Table 1 for symmetry code), which links another anion. ... See full document

9

Crystal structure of 3 mesityl 1 [(pyridin 2 yl)meth­yl] 3,4,5,6 tetra­hydro­pyrim­idin 1 ium bromide monohydrate

Crystal structure of 3 mesityl 1 [(pyridin 2 yl)meth­yl] 3,4,5,6 tetra­hydro­pyrim­idin 1 ium bromide monohydrate

... A methanol solution (30 ml) of N-mesitylpropane-1,3-diamine (15 mmol, 2.88 g) was added dropwise to a methanol solution (30 ml) of pyridine-2-formaldehyde (15 mmol, 1.61 g) and the mixture was stirred at room temperature ... See full document

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Eth­yl 2,2′′ dioxo 2′,3′,5′,6′,7′,7a′ hexa­hydro­acenaphthene 1 spiro 3′ 1′H pyrrolizine 2′spiro 1′′ acenaphthene 1 carboxyl­ate

Eth­yl 2,2′′ dioxo 2′,3′,5′,6′,7′,7a′ hexa­hydro­acenaphthene 1 spiro 3′ 1′H pyrrolizine 2′spiro 1′′ acenaphthene 1 carboxyl­ate

... The three N—C distances in (I) differ from each other considerably. Generally, the bond distances and angles of the pyrrolizidine unit are distorted and this can be explained by the spiro character of the compound and ... See full document

11

Crystal structure of 6 eth­­oxy­pyridin 1 ium 2 olate

Crystal structure of 6 eth­­oxy­pyridin 1 ium 2 olate

... C1 0.0558 (12) 0.0567 (11) 0.0530 (12) −0.0021 (9) −0.0032 (10) 0.0008 (10) C2 0.0651 (14) 0.0644 (12) 0.0619 (14) 0.0015 (10) −0.0066 (11) 0.0103 (11) C3 0.0624 (14) 0.0641 (13) 0.0792 (17) 0.0075 ... See full document

6

Supra­molecular inter­actions in 2,6 di­amino 4 chloro­pyrimidin 1 ium 5 chloro­salicylate and bis­­(2,6 di­amino 4 chloro­pyrimidin 1 ium) naphthalene 1,5 di­sulfonate

Supra­molecular inter­actions in 2,6 di­amino 4 chloro­pyrimidin 1 ium 5 chloro­salicylate and bis­­(2,6 di­amino 4 chloro­pyrimidin 1 ium) naphthalene 1,5 di­sulfonate

... of 5-chlorosalicylate have been reported: 2-methylquinolinium 5-chloro-2-hydroxybenzoate (Zhang et ...4-amino-5-chloro-2,6-dimethylpyrimidinium 5-chloro-2-hydroxybenzoate (Rajam et ... See full document

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