33,468 research outputs found
A novel synthetic route to pentaalkylcyclopentadienylgallium(I) compounds
No full textJutzi P, Schebaum LO. A novel synthetic route to pentaalkylcyclopentadienylgallium(I) compounds. JOURNAL OF ORGANOMETALLIC CHEMISTRY. 2002;654(1-2):176-179.The reaction of 'GaI' with potassium cyclopentadienides allows a simple access to cyclopentadienylgallium(I)-complexes. Thus, the compounds Me5C5Ga 1 and Me4EtC5Ga 2 have been prepared in high yields. Performing the synthesis of 'GaI' under ultrasonic conditions not in toluene but in benzene as solvent, avoids the formation of benzyl iodide as side product. (C) 2002 Published by Elsevier Science B.V
Cave Hermitages and Chapels in Eastern Lo
No full textIn this chapter the author reviews the main cave temples excavated in easten Lo, with particular reference to their wall paintings, most of which are published here for the first time
An Introduction to the Cultural History of Lo (Mustang)
No full textIn this introduction the author describes the cultural and political situation that allowed the flourishing of religious arts at the peak of the power of the kingdom of Lo, in the 15th century
Wonders of Möntang
No full textIn this chapter the author describes the history of the two main temples at Möntang, the capital of Lo, one devoted to the Bodhisattava and future Buddha Maitreya, the other to the historical Buddha Mahamuni, focusing on their wall paintings, which range among the finest in 15th- century geo-cultural Tibet
Unusual selective substitution of triply bridging carbonyl ligands for GaCp* in Rh-6(CO)(16). Synthesis and structural characterization of the Rh-6(mu(3)-CO)(4-x)(mu(3)-GaCp*)(x)(CO)(12) clusters, x=1-4
No full textGrachova EV, Jutzi P, Neumann B, Schebaum LO, Stammler H-G, Tunik SP. Unusual selective substitution of triply bridging carbonyl ligands for GaCp* in Rh-6(CO)(16). Synthesis and structural characterization of the Rh-6(mu(3)-CO)(4-x)(mu(3)-GaCp*)(x)(CO)(12) clusters, x=1-4. JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS. 2002;(3):302-304.Reactions of hexanuclear rhodium clusters with GaCp* (Cp* = C5Me5) result in unusual substitution of face bridging CO ligands to give a series of the Rh-6(mu(3)-CO)(4-x) (mu(3)-GaCp*)(x)(CO)(12) substituted derivatives
Pentamethylcyclopentadienylindium (Cp*In) as terminal ligand in the chemistry of chromium
No full textJutzi P, Neumann B, Reumann G, Schebaum LO, Stammler H-G. Pentamethylcyclopentadienylindium (Cp*In) as terminal ligand in the chemistry of chromium. ORGANOMETALLICS. 1999;18(13):2550-2552.The reaction of Cp*In with the Cr(CO)(5)-transfer agent Cr(CO)5(C8H14) (C8H14 = cis-cyclooctene) results in the formation of Cr(Cp*In)(CO)(5) (1), in which Cp*In acts as an electron pair donor. Compound 1 was characterised by spectroscopic data and by an X-ray analysis. The structure of 1 is compared with the analogous gallium compound Gr(Cp*Ga(CO)(5) (2)
Some of the works of Serigne Mouhammadou Masokhna Lo
No full textDate created: 1980s.The entire manuscript is available for download below as a single PDF file. Each page is also available as a separate, larger, JPG file. If higher-resolution JP2 files are needed (WARNING: files average 11-14MB in size), please contact [email protected].
Fieldwork Team: Dr. Fallou Ngom (PI), Cheikh Tidiane Fall (Co-applicant), Ablaye Diakite (Researcher), Birane Gassama (Researcher)
Technical Team: Roger Brisson (Head of Metadata Services, BU Libraries), Vika Zafrin (Institutional Repository Librarian, BU Libraries), Jack Ammerman (Associate University Librarian for Digital Initiatives and Open Access, BU Libraries), and Dr. Peter Quella.
This collection of Wolofal (Wolof Ajami) materials is copied as part of the EAP 334 Project (Digital Preservation of Wolof Ajami manuscripts of Senegal) led by Dr. Fallou Ngom in collaboration with WARA/WARC and Boston University Library. The project is funded by the British Library/Arcadia Endangered Archives.
Access Condition and Copyright: The materials are subject to copyright. Access is for research and educational purposes only. Materials are not to be reproduced without written permission.
Citation: Materials in this web edition may be cited as: Ngom, Fallou. 2011. African Ajami Library: EAP 334. Digital Preservation of Wolof Ajami Manuscripts of Senegal. Boston: Boston University Library: http://dcommon.bu.edu
For Inquires: Please, contact Professor Fallou Ngom ([email protected])These manuscripts are the originals handwritten by Serigne Mouhammadou Masokhna Lo. Based on the interview with the author, they were written in the 1980s. Red, green, and black ink are used in the manuscripts. The red and green ink are used to highlight key words and phrases. There are frequent insertions of Arabic phrases, which include quranic quotations and opening and closing formulae. The manuscripts contain several poems written by Serigne Mouhammadou Masokhna Lo, including a biographical eulogy of Serigne Mor Mbaye Cisse, a renowned Murid scholar and educator who lived and taught in Diourbel; and criticisms of social problems such as lack of discipline and good behavior, disorderly conduct, adultery, the negative consequences of alcoholism among men, women, young and old, and among leaders and their followers. The materials also include historical accounts of the five year long construction of the mosque of Diourbel (Jumaay Ndiaareem) using chronograms; the discussion between Serigne Modou Moustapha (who led the effort) and the French engineer responsible for the construction on the equipment needed; the construction of the railway between Diourbel and Touba; the personal qualities of Serigne Bassirou Mbacke; a tribute to Cheikh Ahmadou Bamba and to Serigne Mbacke Madina; the motivation of 28 kaamil (copies of the Qur'an) written by Serigne Fallou Mbacke for his father and spiritual guide Cheikh Ahmadou Bamba; and a tribute to Serigne Bousso, among others. The materials also contain a poem on coffee and its benefits.
Digitized on 17 July 2011.
According to the author, the documents were written in the 1980s.
Some images are difficult to read due to the poor condition of both the originals, which have ink stains, and the writing (especially those entirely written with black inks). The ink has faded away in some pages.This collection of Wolofal (Wolof Ajami) materials is copied as part of the EAP 334 Project (Digital Preservation of Wolof Ajami manuscripts of Senegal) led by Dr. Fallou Ngom in collaboration with WARA/WARC and Boston University Library. The project is funded by the British Library/Arcadia Endangered Archives
Steric demand of the Cp*Ga ligand: Synthesis and structure of Ni(Cp*Ga)(4) and of cis-M(Cp*Ga)(2)(CO)(4) (M = Cr, Mo)
No full textJutzi P, Neumann B, Schebaum LO, Stammler A, Stammler H-G. Steric demand of the Cp*Ga ligand: Synthesis and structure of Ni(Cp*Ga)(4) and of cis-M(Cp*Ga)(2)(CO)(4) (M = Cr, Mo). ORGANOMETALLICS. 1999;18(21):4462-4464.In the reaction of (eta(5)-pentamethylcyclopentadienyl)gallium (Cp*Ga) with Ni(COD)(2) (COD = 1,5-cyclooctadiene) and NorM(CO)(4) (Nor = norbornadiene; M = Cr, Mo) the complexes Ni(Cp*Ga)(4) (1) and cis- M(Cp*Ga)(2)(CO)(4) (M = Cr (2), Mo (3)), respectively, were obtained, Compounds 1-3 were characterized by NMR and IR data and by elemental analysis. In addition, an X-ray crystal structure analysis was performed on complexes 1 and 3. Cis-orientation of the Cp*Ga ligands is made possible by deviation of the Cp-centroid*-Ga-M vector from linearity. 1 is the first homoleptic complex with Cp*Ga as ligand
Lewis acid-base adducts of pentamethylcyclopentadienylgallium with trivalent group 13-element compounds
No full textJutzi P, Neumann B, Reumann G, Schebaum LO, Stammler H-G. Lewis acid-base adducts of pentamethylcyclopentadienylgallium with trivalent group 13-element compounds. ORGANOMETALLICS. 2001;20(13):2854-2858.In the reaction of (eta (5)-pentamethylcylopentadienyl)gallium (Cp*Ga) with B(CsF5)(3), (GaBu3)-Bu-t, and Cp*GaX2 (X = Cl, I) the new complexes Cp*GaB(C6F5)(3), 1, Cp*(GaGaBu3)-Bu-t, 2, and Cp*GaGa(X)(2)Cp* (X = Cl, 3; I, 4), respectively, were obtained. Alternatively, complex 3 was formed in the reaction of Cp*Ga with InCl. Compounds 1-4 were characterized by analytical and spectroscopic methods. In addition, X-ray crystal structure analyses of 1, 3, and 4 were performed
New Roads for Patron-Driven E-books:Collection Development and Technical Services Implications of a Patron-Driven Acquisitions Pilot at Rutgers
No full textCollection development librarians have long struggled to meet user demands for new titles. Too often, required resources are not purchased, while some purchased resources do not circulate. E-books selected through patron-driven plans are a solution but present new challenges for both selectors and catalogers. Radical changes to traditional technical services workflows are required, and selectors must modify the selection process to give more choice to the user. Rutgers University librarians have adopted an innovative new technical services workflow and collection-development model to manage a successful, patron-driven acquisitions project for e-books in the fields of math and computer science.This is an Accepted Manuscript of an article published by Taylor & Francis Group in Journal of Electronic Resources Librarianship on 13/12/2011, available online at: http://www.tandfonline.com/10.1080/1941126X.2011.627043
- …
