bluuebunny/crossref_metadata_2025_split huggingface dataset:
Manganese(II) Complexes with Bridging Selenidoarsenate(III) Anions [AsSe2(Se2)]3− and [(AsSe2)2(μ‐Se2)]4−
Authors: Kromm Anna , Sheldrick William S. 
Published: February 2009

AbstractSolvothermal reaction of [MnCl2(terpy)] with elemental As and Se at a 1:1:2 molar ratio in H2O/trien (10:1) at 150 °C affords the linear trimanganese(II) complex [{Mn(terpy)}3(μ‐AsSe4)2] (1). The tridentate [AsSe2(Se2)]3− anions of 1 chelate the terminal {Mn(terpy)}2+ fragments and bridge these through their remaining Se atom to the central {Mn(terpy)}2+ moiety. Weak interactions of Mn1···Se and Mn3···Se bonds with length 2.914(7) and 3.000(7) Å link the molecules of 1 into infinite chains. Treatment of [MnCl2(cyclam)]Cl with As and Se at a 1:1:2 molar ratio in superheated H2O/CH3OH (1:1) at 150 °C yields the dinuclear complex [{Mn(cyclam)}2 (μ‐As2Se6)] (2), whose novel [(AsSe2)2(μ‐Se2)]4− ligands bridge the MnII atoms in a μ‐1κ2Se1, Se2: 2κ2Se5,Se6 manner.
Synthesis and Characterization of an Inorganic‐Organic Hybrid Layered Zinc Phosphite [(C2H3N3)Zn(HPO3)]
Authors: Liu Xianchun , Xing Yan , Liu Li , Song Shuyan , Li Gaijuan , Xu Ning 
Published: February 2009

AbstractA inorganic‐organic hybrid zinc phosphite (C2H3N3)Zn(HPO3) (1) has been prepared under solvothermal conditions in the presence of 1,2,4‐triazole (trz) ligand.Its structure was determined by single‐crystal X‐ray diffraction, and further characterized by powder X‐ray diffraction (XRD), FTIR spectroscopy, elemental analysis, ICP analysis, thermogravimetric analysis and fluorescent spectrum. It crystallizes in the monoclinic system, space group P21/n, a = 7.5515(6) Å, b = 9.1813(8) Å, c = 10.0125(8) Å, β = 111.267(1)°, V = 646.92(9) Å3, Z = 4. The structure consists of left‐handed and right‐handed helical chains that are connected through bridging oxygen atoms to form a two‐dimensional layer structure with 4.8‐net. The compound exhibits intense photoluminescence upon photo‐excitation at 326 nm.
Two Discrete Lanthanum(III) Complexes with Bulky Aromatic Mixed Ligands: Syntheses, Crystal Structures and Fluorescent Properties
Authors: Yang En‐Cui , Dai Pei‐Xia , Wang Xiu‐Guang , Zhao Xiao‐Jun 
Published: February 2009

AbstractTwo discrete lanthanide complexes with bulky aromatic mixed‐ligands, {[La2(na)6(phen)2]·[La2(na)6(phen)2]} (1) and [La2(na)6(2,2′‐bipy)2] (2) (Hna = 1‐naphthoic acid, phen = 1,10‐phenanthroline, and 2,2′‐bipy = 2,2′‐bipyridine), have been synthesized under hydrothermal conditions and fully characterized by single‐crystal X‐ray crystallography, IR, elemental analysis, TG‐DTA and fluorescence spectra. Structure determination reveals that 1 contains two separate binuclear [La2(na)6(phen)2] units, in which both crystallographically LaIII ions are nine‐coordinated with tricapped trigonal prism polyhedron for La1 and a distorted monocapped square antiprism arrangement for La2; whereas 2 has a binuclear structure bridged by carboxylate groups of four na anions. Due to the introduction of bulky aromatic ligands, non‐classical C–H···O H–bonds and π – involved stacking interactions become the dominantly driving forces for the supramolecular structure. The two solid complexes exhibit intense fluorescent emissions at room temperature resulted from the ligand‐to‐metal charge transfer.
Twodimensional Metal‐Organic Framework [Zn(bqdc)]n (bqdc = 2,2′‐biquinoline‐4,4′‐dicarboxylate) – Synthesis, Crystal Structure and Spectral Characterization
Authors: Xie Jingli 
Published: February 2009

AbstractA new two‐dimensional metal‐organic framework [Zn(bqdc)]n (bqdc = 2,2′‐biquinoline‐4,4′‐dicarboxylate) was obtained by the reaction of ligand 2,2′‐biquinoline‐4,4′‐dicarboxylic acid (H2bqdc) and Zn(CH3COO)2·2H2O under hydrothermal conditions. It has been characterized by elemental analysis, FT‐IR, 1H‐NMR and single crystal X‐ray crystallography. It crystallizes in the monoclinic space group P21/n and exhibits a 2D zig‐zag network, assisted by face‐to‐face π‐π interactions of quinoline rings. In addition, it has a fluorescence emission in the solution state at room temperature.
Synthesis of Chloro Boryl Complexes by Oxidative Addition of B–Cl Bonds
Authors: Braunschweig Holger , Fuß Marco , Radacki Krzysztof , Uttinger Katharina 
Published: February 2009

AbstractSome platinum boryl complexes of the type trans‐[(Cy3P)2Pt(Cl){B(Cl)R}] (1: R = NMe2, 2: R = Mes, 3: R = tBu) were synthesized by oxidative addition of the corresponding dichloroboranes to [Pt(PCy3)2]. All the compounds were characterized by multinuclear NMR spectroscopy in solution. Furthermore, a single crystal analysis was acquired from 2, that confirms the strong trans‐influence of this boryl ligand.
Zur Elektronenstruktur metallorganischer Komplexe der f‐Elemente. 70, Optische und Raman‐spektroskopische Polarisationsmessungen an einem orientierten Tris(η5‐tetramethylcyclopentadienyl)neodym(III)‐(Nd(C5Me4H)3) sowie erstmalige Beobachtung “polarisierter” elektronischer Raman‐Effekte an einem orientierten metallorganischen Einkristall: Pr(C5Me4H)3
Authors: Amberger Hanns‐Dieter , Reddmann Hauke 
Published: February 2009

AbstractElectronic Structures of Organometallic Complexes of f Elements. 70, Optical and Raman Spectroscopical Polarization Measurements on an Oriented Tris(η5‐tetramethylcyclopentadienyl)neodymium(III) (Nd(C5Me4H)3) as well as First Observation of “Polarized” Electronic Raman Effects of an Oriented Organometallic Single Crystal: Pr(C5Me4H)3Looking for the ideal exciting line for recording the polarized vibrational Raman spectra of a small oriented single crystal of Nd(C5Me4H)3(1), the laser lines at 785, 632.8 and 532 nm were used. Applying the laser line at 785 nm and comparing the spectra of1with those of La(C5Me4H)3(2), the former are dominated by the σ and π luminescence spectra of the transition4F3/2→4I9/2, which allowed to derive an improved crystal field (CF) splitting pattern of the ground manifold4I9/2. Using the line at 632.8 nm a number of negative peaks were observed which are due to (absorbing) f‐f transitions excited by background radiation. The band positions and intensities as well as the polarizations of these signals correspond to the case of conventional σ and π absorption spectra of a big oriented single crystal. Comparing the polarized Raman spectra of1,2and Pr(C5Me4H)3(3) (using the laser line at 532 nm), it becomes evident that compound3exhibits additional peaks at 183 and 510 cm−1. The existence of CF levels of those energies as well as the strong frequency dependencies and the polarization properties of these bands indicate electronic Raman effects which are extremely rare in the case of organometallics.
Synthesis and Crystal Structure of Rubidium Tetrasulfide‐Ammonia(3), Rb(18‐crown‐6)RbS4·3NH3
Authors: Meier Martin , Korber Nikolaus 
Published: February 2009

AbstractWe report the crystal structure of the rubidium tetrasulfide‐ammoniate(3) Rb(18‐crown‐6)RbS4·3NH3 (18‐crown‐6 = 1,4,7,10,13,16‐hexaoxacyclooctadecan), which formed as a byproduct from an equimolar reaction of elemental rubidium with SiS2 and 18‐crown‐6 in liquid ammonia. Single crystals were isolated and characterized by low temperature X‐ray structure analysis. Rb(18‐crown‐6)RbS4·3NH3 crystallizes in the chiral space group P212121 with a = 8.2936(6) Å, b = 16.3880(12) Å, c = 18.3203(14) Å, V = 2490.0(3) Å3 and Z = 4 as amber, prism shaped crystals. The ammoniate contains the typically chain‐like tetrasulfide anion S42–, rubidium–sulfur contacts lead to one‐dimensionally infinite 1∞[{Rb(18‐crown‐6)(NH3)}2{Rb2(μ‐NH3)4}{S4}2] chains.
Synthesis and Characterization of Hybrid Materials Derived from Polyaniline and Lacunary Keggin‐type Polyoxotungstates
Authors: Chimamkpam Emmanuel F. C. , Hussain Firasat , Engel Andreas , Schilling Andreas , Patzke Greta R. 
Published: February 2009

AbstractOrganic‐inorganic hybrid materials are an upcoming class of materials that attract increasing research interest. In the present manuscript, we report on the combination of a particularly versatile organic matrix – the conductive polymer polyaniline (PAni) – with a special type of polyoxometalates (POMs), namely a lacunary Keggin anion, [AsW9O33]9–. Although the high application potential and the manifold structural motifs of POMs provide an almost infinite number of options for composite materials, up to now, only few POM‐polymer combinations have been explored in more detail. Thus, we have investigated the interaction of PAni with the unique reactivity of [AsW9O33]9– that combines building‐block facilities with the presence of a lone pair on the heteroatom. The resulting composite material was characterized with a wide spectrum of analytical techniques and the effect on the reaction conditions on the nanoscale structuring was investigated. Furthermore, the newly synthesized POM‐PAni composites display a stable temperature‐dependent resistivity that renders them promising for further applications.
In silico investigations on functional and haplotype tag SNPs associated with congenital long QT syndromes (LQTSs)
Authors: Sudandiradoss C. , Sethumadhavan Rao 
Published: February 2009

Abstract
Single-nucleotide polymorphisms (SNPs) play a major role in the understanding of the genetic basis of many complex human diseases. It is still a major challenge to identify the functional SNPs in disease-related genes. In this review, the genetic variation that can alter the expression and the function of the genes, namely KCNQ1, KCNH2, SCN5A, KCNE1 and KCNE2, with the potential role for the development of congenital long QT syndrome (LQTS) was analyzed. Of the total of 3,309 SNPs in all five genes, 27 non-synonymous SNPs (nsSNPs) in the coding region and 44 SNPs in the 5′ and 3′ un-translated regions (UTR) were identified as functionally significant. SIFT and PolyPhen programs were used to analyze the nsSNPs and FastSNP; UTR scan programs were used to compute SNPs in the 5′ and 3′ untranslated regions. Of the five selected genes, KCNQ1 has the highest number of 26 haplotype blocks and 6 tag SNPs with a complete linkage disequilibrium value. The gene SCN5A has ten haplotype blocks and four tag SNPs. Both KCNE1 and KCNE2 genes have only one haplotype block and four tag SNPs. Four haplotype blocks and two tag SNPs were obtained for KCNH2 gene. Also, this review reports the copy number variations (CNVs), expressed sequence tags (ESTs) and genome survey sequences (GSS) of the selected genes. These computational methods are in good agreement with experimental works reported earlier concerning LQTS.
Reducing maternal mortality in Yemen: Challenges and lessons learned from baseline assessment
Authors: Al Serouri Abdul Wahed , Al Rabee Arwa , Bin Afif Mohammed , Al Rukeimi Abdullah 
Published: February 2009

AbstractObjectiveThe Yemen is a signatory of the Millennium Development Goals (MDGs) and one of 10 countries chosen for the UN Millennium Project. However, recent MDG progress reviews show that it is unlikely that the maternal health goal will be reached by 2015 and Yemen still has an unacceptably high maternal mortality of 365 per 100 000 live births. Because 82% of deaths happen intrapartum, the purpose of this needs assessment was to identify and prioritize constraints in delivery of emergency obstetric care (EmOC).MethodsFour district hospitals and 16 health centers in 8 districts were assessed for functional capacity in terms of infrastructure; availability of essential equipment and drugs; EmOC technical competency and training needs; and Health Management Information System.ResultsWe found poor obstetric services in terms of structure (staffing pattern, equipment, and supplies) and process (knowledge and management skills).ConclusionThe data argue for strengthening the 4 interlinked health system elements—human resources, and access to, use, and quality of services. The Government must address each of these elements to meet the Safe Motherhood MDG.
Sophoclea
Authors: Platt Arthur 
Published: February 2009

I have never been able to swallow the explanation that this means οίσθ' ὃ τɩ ἒστɩ τ⋯ν κακ⋯ν ⋯ποῖον κ.τ.λ. The order of words is dead against it, since Zεύς ought to be in the ⋯ποῖον clause; it may be safely said that there is no shadow of a parallel to such an order in Sophocles, and probably not in anyone else either. Look at line 2 by itself and consider whether any hearer could possibly suppose that δτɩ Ζεὺς could mean anything but ‘that Zeus’ is doing or will do something or other. So Aristophanes seems to have thought; in a passage crammed with reminiscences of tragedy he declaims (Birds 1246):ἆρ' οἶσθ' ὃτɩ Ζεύς εἳ με λυπήσεɩ πέρα μέλαθρα μ⋯ν αύτο⋯ κα⋯ δόμοѵς' AμΦ⋯ονος καταɩθαλώσω πυρΦόροɩσѵν ⋯ετοῖς;Moreover, I flatly deny that οἶσθ' ⋯ τɩ κακ⋯ν όποῖον ού τελεῖ is possible Greek even when the order has been corrected. οὐĸ οἶδα ὃστɩς τ⋯ν ‘Eλλήνων όποῖος ούκ ᾀπαρνοῖτ’ ἂѵ τοȖτο μ⋯ οὺκ εἶναɩ ⋯ληθ⋯ς. Just look at it!
Aeschylus, Agamemnon, 1227–32
Authors: Lawson J. C. 
Published: February 2009

These lines of Cassandra's speech, as given in the MSS., run thus:νεν τ' ἄπαρχος Ἰλίου τ' ναστάτηςοὐκ οἶδεν οἷα γλσσα μισητς κυνςλέξασα κα κτείνασα ϕαιδρνους, δίκηνἄτης λαθραίου, τεξεται κακῇ τχῃ.τοιάδε τολμ· θλυς ἄρσενος ϕονεὺςἔστιν.
Palatal λ in Greek Dialects
Authors: Mckenzie R. 
Published: February 2009

To the instances of non-syllabic ε after -ιλ- or -υλ- which were given in Class. Quart. XVII. 196 (cf. Schwyzer, Exempla 251B 17, note), two more may be added:(1) Σιλεωνίας, Kaibel, Epigrammata Graeca 783 (Cnidos), occurs in a trochaic line, and is scanned Cup – Cup –. Kaibel calls it a ‘nomen suspectum’; but in the re-edition in Anc. Gr.Inscr.in the British Museum, No. 796, the reading is defended by a comparison with Σιλώνιος in C.I.G. 1577. 3 = I.G. 7. 2429 (Thebes).
More Notes on the Text of Hesiod
Authors: West M. L. 
Published: February 2009

These notes are a supplement to those which formed the second part of my ‘Hesiodea’. In part they result from re-examination of manuscripts and papyri undertaken for a projected commentary on the Theogony.In discussing the text of Hesiod a prime necessity is a new system of sigla. Rzach's system has the grave disadvantage that in the three extant poems the same manuscript is denoted by different letters, and conversely the same letter denotes different manuscripts.
A Paean in the Philoctetes
Authors: Haldane J. A. 
Published: February 2009

The short hymn to Hypnos at the opening of the first komrnos of the Philoctetes is of particular interest in view of Sophocles' association with the cult of Asclepius.As suggested by the invocation the hymn is in fact intended to recall the paean, a form of liturgy with which Sophocles' audience must have become increasingly familiar in the years since the introduction in 420/19 of the Asclepius cult. Indeed if we are to judge by inscriptional and other remains the output of hymns for the cult of the healing gods from the fifth century onwards must have been a prolific one and considerably in excess of that for other deities in the same period. It is well known that amongst the earliest writers of hymns for the cult was Sophocles himself. The Suda in the list of his works records one of which at least, a paean to Asclepius, was known as late as the second and third centuries A.D. Probably this is not to be identified with the Sophoclean paean on the Sarapion monument of the same period, which in so far as the extremely fragmentary state of the inscription will allow us to determine would seem to be addressed not to Asclepius himself but to his mother Coronis.
Two Titles of Goddesses in Hesychios
Authors: Rose H. J. 
Published: February 2009

ἘγχώΣεμλη ӣὕτως καλεῖτо, says the lexicographer, from a source which is unknown, but would appear to be late, since it uses a past tense. Where or by whom Semele was so named is not stated, nor has any explanation been given, so far as I know, that is at all satisfactory, for she certainly has nothing to do with swords. I suggest that she was never called anything of the kind, and the statement arises from a comedian's jest. Aristophanes (Ran. 22) speaks of Διννσоς Σιαμνоν, and the scholiast is careful to inform the humourless who read this play that it is a joke, παρ' ὑπνоιαν, instead of νἱς Δις. So no lexicographer ever tells us that Stamnios is a title of Zeus. I suggest that somewhere, by Aristophanes or another, Dionysos was called νἱς Ἐγχоς, ‘son of Pour-Out,’ a comic formation from γχεῖν. If such a passage came into the late classical or the mediaeval world unguarded by a scholiast, it would be taken with the same seriousness which has attended sundry witticisms directed at Kleon and other butts of Comedy. The reasoning would be most syllogistic and accurate, as thus:Encho is the mother of Dionysos.But Semele is the mother of Dionysos.Therefore Encho is Semele, Q.E.D.
The Manuscripts of Aristophanes Knights (II)
Authors: Jones D. Mervyn 
Published: February 2009

IN the first part of this paper we discussed R and the y family, which divides into the two groups v (VE) and Φ (AT). Before leaving the y family, however, we may consider some of the recentiores, nearly all of which belong within it. They seem to contain no genuine tradition unknown to their elders and betters; so it is not proposed to inflict on the reader a detailed account of them all, but rather to study a representative selection.These manuscripts consist of an uninterpolated and an interpolated group: the latter group includes also the Aldine edition.
The Costume of The Actors In Aristophanic Comedy
Authors: Webster T. B. L. 
Published: February 2009

Professor Beare has attacked the position established by Alfred Körte in 1893 and accepted in large measure by Sir Arthur Pickard-Cambridge in Dithyramb, etc., and Festivals. The following reply is brief because I have dealt with the works of art at some length in Rylands Bulletin, xxxvi (1954), 563 f. and in a forthcoming number of Ephemeris Archaiologike.The statement of Aristotle (Poet., ch. 4). I have tried to show that various elements in the ‘phallic performances’ were taken over by comedy and that we have some evidence that the leaders of padded dancers wore the phallos.
Terentiana
Authors: Phillimore J. S. 
Published: February 2009

From the paper in which the Interrogatives were treated, by an inadvertency an was omitted. As there was every reason to expect, an is found to shorten a sub-joined hoc, id, etc.Ad. 337 an ŏc proferendum tibi uidetur usquam? Ge. Mi quidem non placet. (So the vulg. since Bentley; but A has usquam esse, and the Calliopians have esse usquam. Room could be found for both words by a transposition, thus: an hŏc tibi uidetur proferendum esse usquam? etc.)
Herodas 4
Authors: Cunningham I. C. 
Published: February 2009

The fourth of Herodas is entitled in the papyrus —a title which very well describes the beginning and end of the poem, but disregards the middle, the most important part. The poem divides naturally into sections as follows: (i)1–20a;(2) (i)20b–38, (ii) 39–563, (iii) 56b–78; (3) 79–95.In (1) we hear one of the women of the title carrying out the offering to the god. This section has been examined in detail by R. Wünsch, ‘Ein Dankopfer an Asklepios’, Arch. Rel. Wiss. vii (1904), 95 ff., who shows that it corresponds closely to the form of prayer used in real life, starting with the invocatio of the god, comprising greeting () and mention of his dwelling-places (Trikka, Kos, Epidauros), family (parents, Koronis and Apollo;
The Enclosing Word Order in the Latin Hexameter. I
Authors: Pearce T. E. V. 
Published: February 2009

In poem 64 Catullus, as Fordyce points out in his edition (p. 275), often has lines enclosed by a noun and its adjective, e.g.:5 auratam optantes Colchis avertere pellemVery often, but not always, a syntactical unit is enclosed as well as the line. This is perhaps not surprising, considering the prevalence of punctuation at the end of the line in this poem. Nevertheless, an examination of the lines will show that when a noun and adjective1 enclose both line and syntactical unit the fact that they enclose a syntactical unit can be regarded as a determinant of the word order.
Two Notes on the Text of Aristophanes
Authors: Platnauer M. 
Published: February 2009

So Hall and Geldart's text and critical note. The latter needs a correction and an addition: R gives (so, too, ΣR, which has ; γ is found only in B and the Aldine edition, R and V omit it.What is the object of Van Leeuwen says ‘mente suppl.xwhich seems to me inconsequent if not nonsensical. Starkie, printing a dash after the word, notes ‘as the sentence is interrupted by Philocleon, it is impossible to know what was meant to be the object of this verb’. This does not seem very satisfactory. Rogers apparently takes the verb as used absolutely and translates ‘you'll strike by and by’. Coulon, not unnaturally dissatisfied with these explanations, reads and translates ‘tu vas te faire lapider’, adding a note ‘on jetait des pierres aux fous; cf. Otseaux 524’. Starkie also mentions this possibility and attributes its origin to the scholiast—wrongly, for the gloss shows that the scholiast did not take as meaning ‘will be pelted as a madman’. In any case all this is very far-fetched. And there is a further point: the strange future active, is found elsewhere only at line 222 of this same play and nowhere else in Greek. It is therefore rash to postulate an entirely unparalleled middle form of this, and that, too, in a passive sense. Had he intended this meaning Aristophanes would surely have written.
The Homeric Hymns
Authors: Agar T. L. 
Published: February 2009

These lines conclude the account of Hermes inventing the primitive method of producing fire by friction, and it is evident that the writer had in mind σ 308:περ δ ξλα κγχανα θ;καν,αὖα πλαι περκηλα, νον κεκεασμνα χαλκῷ,cf. also ε 240. Gemoll accordingly in his edition (1886) read αὖα λαβών, and for so doing was rebuked by Messrs. S. and A. in their best dogmatic manner: ‘Gemoll's αὖα cannot be accepted; οὖλα is sound, though the meaning is not certain.’ In other words: ‘Whether οὖλα makes sense or nonsense, it is right.’ Finally, they say that οὖλα probably means ‘whole’, and this translation is, I think, confirmed by l. 137; but then it follows that the hymn-writer was flatly contradicting the κεκεασμνα in Homer's line, and knew no more about fire-lighting than these trenchant editors. Ignition fuel has a character of its own, and from this point of view Gemoll has the advantage.
The Way of Truth
Authors: Tugwell Simon 
Published: February 2009

Professor G. E. L. OWEN has demonstrated (C.Q. N.S. X [1960], 84 ff.) that Parmenides' Way of Truth is to be taken as a self-contained logical argument. The basis for this argument is a proof that whatever we may choose to think about The first stage of this proof is contained in B 2.According to Owen's reconstruction of the argument, Parmenides' method is to take the three possible answers to the question (i.e. an unqualified yes; an unqualified no; and a noncommittal answer that some- times we must say yes, sometimes no) and rule out two of them. This view involves giving equal status to each of the two wrong answers; but Parmenides appears not to do this. At the start of B 2 he undertakes to tell us