328,660 research outputs found
Measurements of R(d) - R(p) and R(Ca) - R(C) in deep inelastic muon scattering
No full textAmaudruz P, Arneodo M, Arvidson A, et al. Measurements of R(d) - R(p) and R(Ca) - R(C) in deep inelastic muon scattering. Phys.Lett. B. 1992;294(1):120-126
ʿABD AL-KARĪM IBN MUḤAMMAD AL-QAZWĪNĪ AL-RĀFIʿĪ. al-Šarḥ al-ṣaġīr ʿalā l-waǧīz (4e volume). Arabe 987
No full textŠarḥ (aš-) al-ṣaġīr ʿalā l-waǧīzWaǧīz (al-). Commentaireالشرح الصغير على الوجيزالوجيز .شرحNumérisation effectuée à partir d'un document de substitution : R 67552.Copie achevée 7 šawwāl 738 h. / 28 avril 1338 (f. 230 v)
ʿABD AL-KARĪM IBN MUḤAMMAD AL-QAZWĪNĪ AL-RĀFIʿĪ. al-Šarḥ al-ṣaġīr ʿalā l-waǧīz (4e volume). Arabe 989
No full textŠarḥ (aš-) al-ṣaġīr ʿalā l-waǧīzWaǧīz (al-). Commentaireالشرح الصغير على الوجيزالوجيز .شرحNumérisation effectuée à partir d'un document de substitution : R 68102.Copie achevée le 1er ǧumādā II 739 h. / 15 décembre 1338 (f. 261)
ʿABD AL-KARĪM IBN MUḤAMMAD AL-QAZWĪNĪ AL-RĀFIʿĪ. al-Šarḥ al-ṣaġīr ʿalā l-waǧīz (4e volume). Arabe 988
No full textŠarḥ (aš-) al-ṣaġīr ʿalā l-waǧīzWaǧīz (al-). Commentaireالشرح الصغير على الوجيزالوجيز .شرحNumérisation effectuée à partir d'un document de substitution : R 67553.Copie achevée le 4 ramaḍān 738 h. / 26 mars 1338
DFT study of the geometry and energy order of the low singlet and triplet states of [d4-η5-CpMo(CO)2X] 16-electron complexes (X = halogen, CN, H, and CH3)
No full textDFT methods have been used to investigate the dependence of the geometry and energy order of the low energy states of [d4-η 5-CpMo(CO)2X] 16-electron complexes on X (X = halogen, CN, H and CH3). The calculations use a double-ζ plus polarization valence basis set on all atoms and utilize relativistic ECPs on Mo and the heavier halogens. In every case two singlet and two triplet electronic states have been considered and minimized at the B3LYP level. For X = Cl, additional calculations were carried out at the BPW91, CCSD(T), and CASSCF levels. In the Cs point group, the singlet states are from the (1a′) 2(1a″)2 and (1a′)2(2a′) 2 configurations of the valence d4 electrons of the metal, and are denoted 1A′-a and 1A′-b, respectively. The triplet species are for the lowest 3A″ and 3A′ states from the (1a′)2(2a′) 1(1a″)1 and (1a″)2(1a′) 1(2a′)1 d4 configurations. For all substituents, the geometry of both the singlet and triplet states is found to distort substantially from the uniform 3-leg piano-stool structural motif, a behavior that can be related to Jahn-Teller effects. When X is a halogen or a methyl, 1A′-b is predicted to be lower than 1A′-a, while the reverse order of these two singlet states is calculated for X = H and CN. For all substituents 3A′ is substantially higher than 3A″. In turn, the energy of 3A″ is calculated to be comparable to the lower singlet state of each complex. Attempts are made to rationalize some of these results using qualitative MO theory.ABUGIDEIRI F, 1994, J CHEM SOC CHEM COMM, P2317, DOI 10.1039-c39940002317; Abugideiri F, 1996, ORGANOMETALLICS, V15, P4407, DOI 10.1021-om960331d; ABUHASANAYN F, 1993, INORG CHEM, V32, P495, DOI 10.1021-ic00057a002; ABUHASANAYN F, 1994, INORG CHEM, V33, P5122, DOI 10.1021-ic00100a043; Abu-Hasanayn F, 2002, ANGEW CHEM INT EDIT, V41, P2120, DOI 10.1002-1521-3773(20020617)41:122120::AID-ANIE21203.0.CO;2-5; BECKE AD, 1993, J CHEM PHYS, V98, P5648, DOI 10.1063-1.464913; Bersuker IB, 2001, CHEM REV, V101, P1067, DOI 10.1021-cr0004411; BITTERWOLF TE, 2000, J ORGANOMET CHEM, V605, P68; BUTLER IS, 1967, INORG CHEM, V6, P207; Cacelli I, 2000, INORG CHEM, V39, P517, DOI 10.1021-ic990875i; CAULTON KG, 1994, NEW J CHEM, V18, P25; CHILDS GI, 2001, J CHEM SOC DA, V11, P1711; CHILDS GI, 2000, DALTON, V24, P4534; DOHERTY NM, 1991, CHEM REV, V91, P553, DOI 10.1021-cr00004a005; Fagnou K, 2002, ANGEW CHEM INT EDIT, V41, P26, DOI 10.1002-1521-3773(20020104)41:126::AID-ANIE263.0.CO;2-9; FETTINGER JC, 1997, CHEM COMMUN, V9, P889; FREEMAN JW, 1991, ORGANOMETALLICS, V10, P256, DOI 10.1021-om00047a058; FRISCH M, 1992, CHEM PHYS LETT, V189, P524, DOI 10.1016-0009-2614(92)85244-5; FRISCH MJ, 1984, J CHEM PHYS, V80, P3265, DOI 10.1063-1.447079; Frisch M.J., 1998, GAUSSIAN 98 REVISION; GEORGE MW, 1993, J AM CHEM SOC, V115, P2286, DOI 10.1021-ja00059a026; GRILLS DC, 2000, DALTON, V19, P1841; GROSS E, 1984, ANGEW CHEM, V96, P705, DOI 10.1002-ange.19840960920; Hart-Davis A. J., 1970, INORG CHIM ACTA, V4, P441, DOI 10.1016-S0020-1693(00)93323-1; HARVEY JN, 2003, COORDIN CHEM REV, P238; HATDAVIS A, 1969, J CHEM SOC A, P2403; HAWARD MT, 1991, J CHEM SOC CHEM COMM, P1101, DOI 10.1039-c39910001101; Hay P. J., 1985, J CHEM PHYS, V82, P279; HEGARTY D, 1979, MOL PHYS, V38, P1795, DOI 10.1080-00268977900102871; HILL RH, 1991, ORGANOMETALLICS, V10, P2104, DOI 10.1021-om00053a010; HOOKER RH, 1990, J CHEM SOC DA, V4, P1231; HUHEEY JE, 1993, INORGANIC CHEM PRINC, pC11; Huzinaga S., 1984, GAUSSIAN BASIS SETS; Jensen VR, 2003, J PHYS CHEM A, V107, P1424, DOI 10.1021-jp027212y; JOERG K, 1986, ANGEW CHEM, V98, P103; Lees AJ, 2001, COORDIN CHEM REV, V211, P255, DOI 10.1016-S0010-8545(00)00283-6; LUKSZA M, 1983, ANGEW CHEM, V95, P418; MAHMOUD KA, 1984, ORGANOMETALLICS, V3, P501, DOI 10.1021-om00081a034; Perdew JP, 1996, PHYS REV B, V54, P16533, DOI 10.1103-PhysRevB.54.16533; Poli R, 1996, CHEM REV, V96, P2135, DOI 10.1021-cr9500343; Poli R, 1998, NEW J CHEM, V22, P435, DOI 10.1039-a709187g; POPLE JA, 1987, J CHEM PHYS, V87, P5968, DOI 10.1063-1.453520; PURVIS GD, 1982, J CHEM PHYS, V76, P1910, DOI 10.1063-1.443164; RACHIDI IE, 1990, NEW J CHEM, V14, P671; Rassolov VA, 2001, J COMPUT CHEM, V22, P976, DOI 10.1002-jcc.1058.abs; RIEHL JF, 1992, ORGANOMETALLICS, V11, P729, DOI 10.1021-om00038a035; SCUSERIA GE, 1988, J CHEM PHYS, V89, P7382, DOI 10.1063-1.455269; Snee PT, 2001, J AM CHEM SOC, V123, P2255, DOI 10.1021-ja002350r; Snee PT, 1999, J PHYS CHEM A, V103, P10426, DOI 10.1021-jp991964j; Stowasser R, 1999, J AM CHEM SOC, V121, P3414, DOI 10.1021-ja9826892; WILKINSON G, 1995, COMPREHENSIVE ORGANO, V2; XIA WJ, 1993, J PHOTOCH PHOTOBIO A, V71, P221, DOI 10.1016-1010-6030(93)85003-Q55
Pyrrolylaldiminato complexes of Zn, Mg and Al
No full textThe reaction of 2-(2,6-iPr(2)C(6)H(3)N = CH)-5-R-C4H2NH (R = H, (LH)-H-1; R = tBu, (LH)-H-2) with one equivalent of ZnMe2 or MgnBu(2) in toluene or n-hexane afforded the bis(pyrrolylaldiminato) complexes ZnL21 (1), ZnL22 (2) and MgL22 (3). Crystalline 2 2 MgL21.THF (4THF) was formed by treatment of LiL1 with MeMgCl in THF followed by recrystallization from n-hexane. (LAlMe2)-Al-1 (6) and (LAlMe2)-Al-2 (7) were readily prepared by refluxing (LH)-H-1 and (LH)-H-2 with AlMe3 in toluene or n-hexane for several hours, However, the reaction of LiL1 with AlCl3 in a 1:1 molar ratio provided (L2AlCl)-Al-1 (8), while the reaction of KL2 with AlCl3 afforded (LAlCl2)-Al-2 (9). Compounds 2, 3, 5, and 8 were characterized by a single-crystal X-ray structural analysis. Compounds 2, 3, and 5 all have a tetrahedral geometry around the metal atom, while the five-coordinate aluminum in 8 has a trigonal bipyramidal geometry
Pyrrolylaldiminato complexes of Zn, Mg and Al
No full textThe reaction of 2-(2,6-iPr(2)C(6)H(3)N = CH)-5-R-C4H2NH (R = H, (LH)-H-1; R = tBu, (LH)-H-2) with one equivalent of ZnMe2 or MgnBu(2) in toluene or n-hexane afforded the bis(pyrrolylaldiminato) complexes ZnL21 (1), ZnL22 (2) and MgL22 (3). Crystalline 2 2 MgL21.THF (4THF) was formed by treatment of LiL1 with MeMgCl in THF followed by recrystallization from n-hexane. (LAlMe2)-Al-1 (6) and (LAlMe2)-Al-2 (7) were readily prepared by refluxing (LH)-H-1 and (LH)-H-2 with AlMe3 in toluene or n-hexane for several hours, However, the reaction of LiL1 with AlCl3 in a 1:1 molar ratio provided (L2AlCl)-Al-1 (8), while the reaction of KL2 with AlCl3 afforded (LAlCl2)-Al-2 (9). Compounds 2, 3, 5, and 8 were characterized by a single-crystal X-ray structural analysis. Compounds 2, 3, and 5 all have a tetrahedral geometry around the metal atom, while the five-coordinate aluminum in 8 has a trigonal bipyramidal geometry
A 2 h periodic variation in the low-mass X-ray binary Ser X-1
No full textSpectroscopy of the low-mass X-ray binary Ser X-1 using the Gran Telescopio Canarias have revealed a ?2 h periodic variability that is present in the three strongest emission lines. We tentatively interpret this variability as due to orbital motion, making it the first indication of the orbital period of Ser X-1. Together with the fact that the emission lines are remarkably narrow, but still resolved, we show that a main-sequence K dwarf together with a canonical 1.4 M? neutron star gives a good description of the system. In this scenario, the most likely place for the emission lines to arise is the accretion disc, instead of a localized region in the binary (such as the irradiated surface or the stream-impact point), and their narrowness is due instead to the low inclination (?10°) of Ser X-1
Review of the book Unbegrenzte moglichkeiten: Amerikanisierung in Deutschland und Frankreich (1900-1933) by Egbert Klautke
No full textDr. Jeff R. Schutts (Douglas College) reviews the book Unbegrenzte Moglichkeiten: Amerikanisierung in Deutschland und Frankreich (1900-1933) by Egbert Klautke (2005).Final article published
Kitab al-fiqh 'ala madzahib al-arba'ah
No full textFikih komparatif empat mazhab karya al jaziri. Kitab al-Fiqh ?ala al-Mazahib al-Arba?ah ( الفقه على المذاهب الاربعة ) atau kitab Fiqh Empat Mazhab adalah sebuah kitab perbandingan mazhab yang cukup terkenal.kitab ini membahas permasalahan fiqh antar mazham yang muktamad dalam Ahlus Sunnah wal Jama?ah, yaitu mazhab Hanafi, Maliki, Syafi?i dan Hanbali.
Kitab ini merupakan karya Syaikh Abd al-Raĥmān Ibn Muĥammad ` Awađ al-Jazīrī, lahir di Shandawīl,Mesir pada tahun 1882 (1299 H) dan menuntut ilmu agama di al-Azhar dari tahun 1896 hingga tahun 1909.beliau kemudian diangkat menjadi guru di al-Azhar
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