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4.2 to 150 K

2 (2,6 Diiso­propyl­phenyl­amino) 4 (2,6 diiso­propyl­phenyl­imino) 2 pentene toluene hemisolvate at 150 K

2 (2,6 Diiso­propyl­phenyl­amino) 4 (2,6 diiso­propyl­phenyl­imino) 2 pentene toluene hemisolvate at 150 K

... The crystal structure is composed of discrete molecules of (I) (Fig. 1) exhibiting no signi®cant intermolecular contacts. The NÐC [N1ÐC2 1.326 (2) and N2ÐC4 1.327 (2) AÊ] and CÐC [C2ÐC3 1.398 (2) and ...

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Titanium(IV) chloride at 150 K

Titanium(IV) chloride at 150 K

... The low-temperature solid-state structure of titanium(IV) chloride is composed of tetrahedral molecules (Fig. 1). The molecules form loose dimers (Fig. 2), with intermolecular Ti Cl contacts of 3.994 (1) AÊ. This ...

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Tetra­methyl­lead(IV) at 150 K

Tetra­methyl­lead(IV) at 150 K

... lographic threefold axis. The structure shows isolated regular tetrahedral molecules, with an average PbÐC bond length of 2.211 (11) AÊ (Fig. 1). A riding correction for librational motion (XP; Sheldrick, 1997) increases ...

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(4R,5R) 2 (N Methyl benzyl­amino) 3 nitro 4 (1′,2′,3′,4′,5′ penta O acetyl D manno pentitol 1 yl) 5 phenyl 5 phenyl­carbamoyl 4,5 di­hydro­thio­phene at 150 K

(4R,5R) 2 (N Methyl benzyl­amino) 3 nitro 4 (1′,2′,3′,4′,5′ penta O acetyl D manno pentitol 1 yl) 5 phenyl 5 phenyl­carbamoyl 4,5 di­hydro­thio­phene at 150 K

... been determined at room temperature and at 150 K. From the cycloaddition of thioisomuÈnchnones with chiral nitroalkenes, two diastereomeric dihydrothiophenes were obtained, showing that regiospeci®city and ...

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Redetermination of chloro­(tri­ethanolaminato)­zinc(II) at 150 K

Redetermination of chloro­(tri­ethanolaminato)­zinc(II) at 150 K

... One of the three hydroxyl groups of the triethanolamine ligand is deprotonated, resulting in a short O1—-Zn1 distance of 2.0014 (12) Å due to the negative charge on atom O1 (Table 1). The O2—Zn1 and O3—Zn1 distances of ...

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trans Bis­(aceto­nitrile)­tetra­aqua­cobalt(II) dinitrate at 150 K

trans Bis­(aceto­nitrile)­tetra­aqua­cobalt(II) dinitrate at 150 K

... cations, with each nitrate O atom participating in hydrogen bonding. Two of the O atoms accept single hydrogen bonds from two different water-molecule donors, but the other adopts hydrogen bonds from two water molecules ...

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DL Threoninium maleate at 150 K

DL Threoninium maleate at 150 K

... signi®cant deviation from planarity, as observed in similar structures, viz. bis(l-threoninium) sulfate monohydrate (Sridhar et al., 2001), O-phospho-l-threonine and O-phospho- dl-threonine (Maniukiewicz et al., 1996). ...

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Redetermination of para amino­pyridine (fampridine, EL 970) at 150 K

Redetermination of para amino­pyridine (fampridine, EL 970) at 150 K

... 4-Aminopyridine (fampridine) is used in the treatment of neurological ailments, such as multiple sclerosis (MS), with tests showing that fampridine improves motor function in MS patients (Schwid et al., 1997). ...

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Lead(IV) chloride at 150 K

Lead(IV) chloride at 150 K

... though the crystal system is monoclinic, the lattice type is centred (I-centred in the setting given here) rather than primitive, and it is clear that this compound does not follow the trend established by the lighter ...

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α Lactose monohydrate: a redetermination at 150 K

α Lactose monohydrate: a redetermination at 150 K

... Graph-set analysis of the hydrogen-bonding patterns (Bernstein et al., 1995; Etter et al., 1990) within the structure shows the complicated nature of the linking together of the lactose and water molecules. There are 15 ...

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Tri­aqua(2,6 pyridine­di­carboxyl­ato)copper(II) at 150 K

Tri­aqua(2,6 pyridine­di­carboxyl­ato)copper(II) at 150 K

... C7 0.0150 (7) 0.0113 (7) 0.0138 (7) −0.0011 (5) 0.0027 (5) −0.0005 (5) O1 0.0130 (5) 0.0155 (6) 0.0255 (6) 0.0015 (4) −0.0010 (4) 0.0011 (4) O2 0.0138 (5) 0.0114 (5) 0.0185 (5) −0.0002 (4) ...

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trans 3 Acetyl 5 benzoyl 2 methyl 4 phenyl 4,5 di­hydro­furan at 150 K

trans 3 Acetyl 5 benzoyl 2 methyl 4 phenyl 4,5 di­hydro­furan at 150 K

... indicates that atoms H4 and C8 are eclipsed. This con®gura- tion, to avoid steric interactions between the two phenyl rings, is probably established in the cyclization step of the formation of the compound. Fig. 2 ...

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Ethyl cis 3 (2 meth­oxy­phenyl) 1 4 thia­zine 2 carboxyl­ate 1,1 dioxide at 150 K

Ethyl cis 3 (2 meth­oxy­phenyl) 1 4 thia­zine 2 carboxyl­ate 1,1 dioxide at 150 K

... ¯ipping, with equatorial ethoxycarbonyl and axial o-meth- oxyphenyl groups, is not preferred by the molecules, presumably because the steric requirements of the methoxy- phenyl ring are larger than those of the ...

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Trimesic acid bis­(N,N di­methyl­form­amide) solvate at 150 K

Trimesic acid bis­(N,N di­methyl­form­amide) solvate at 150 K

... The determination at low temperature (150 K) gives a slight improvement in the ®nal R value (5.14% compared to 5.87%), with reductions of 1.5, 0.4 and 2.2% in the a, b and c unit-cell dimensions, resulting ...

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Ethyl­enedi­ammonium fluoro­trioxophosphate at 150 K

Ethyl­enedi­ammonium fluoro­trioxophosphate at 150 K

... coordinates for non-H atoms in the interval 0.001–0.004 for the x coordinate, while differences for other coordinates are one order of magnitude smaller. Differences divided by the average of the pertinent s.u. values ...

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Di­ammonium tetra­thio­tungstate(VI), (NH4)2[WS4], at 150 K

Di­ammonium tetra­thio­tungstate(VI), (NH4)2[WS4], at 150 K

... al., 2003). In view of our recent interest in the chemistry of tetrathiotungstates (Srinivasan et al., 2003), we have rede- termined the structure of diammonium tetrathiotungstate at low temperature. The title compound, ...

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Volume 30 - Article 4 | Pages 111–150

Volume 30 - Article 4 | Pages 111–150

... While increased attention is being paid to the school performance of child workers, the effects of work activities on their health have not received the same attention. Identifying the health effects of child labour is ...

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Absorptivity of Single Crystal Yttrium at 4 2 K

Absorptivity of Single Crystal Yttrium at 4 2 K

... The observed structures in the absorptivity were interpreted on the basis of band calculations for Sc, Re, and Gd and qualitative agreement was found between the band structures and the [r] ...

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2 (1 Adamant­yl) 4 bromo­anisole at 123 K

2 (1 Adamant­yl) 4 bromo­anisole at 123 K

... Br1 0.0757 (3) 0.0442 (3) 0.0583 (3) 0.0164 (3) 0.0146 (3) −0.00538 (19) O1 0.0647 (19) 0.0356 (16) 0.0483 (16) −0.0131 (14) 0.0155 (15) −0.0039 (14) C8 0.0306 (19) 0.030 (2) 0.0313 (19) 0.0015 (15) 0.0001 (14) ...

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catena Poly­[[tetra­kis­(μ acetato κO:κO′)­dicopper(II)] μ 2 amino­pyrimidine κ2N:N′] at 150 K

catena Poly­[[tetra­kis­(μ acetato κO:κO′)­dicopper(II)] μ 2 amino­pyrimidine κ2N:N′] at 150 K

... hydrogen-bonding interactions comes, not from their dimensions [N—H 0.86 (2), H···O 2.04 (2), N···O 2.872 (3) Å and N —H···O 161 (3)°; C—H 0.93, H···O 2.34, C···O 2.987 (3) Å and C—H···O 127°], which are ...

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