Synthesis and characterization of mono and polymeric cyclopalladated compounds: Crystal and molecular structure of [{Pd(dmba)(ONO(2))}(2)(mu-pz)] center dot H(2)O (pz = pyrazine)

In the treatment of cyclometallated dimer [Pd(dmba)(mu-Cl)](2) (dmba = N,N-dimethylbenzylamine) with AgNO(3) and acetonitrile the result was the monomeric cationic precursor [Pd(dmba)(NCMe)(2)](NO(3)) (NCMe=acetonitrile) (1). Compound 1 reacted with m-nitroaniline (m-NAN) and pirazine (pz), originating [Pd(dmba)(ONO(2))(m-NAN)] (2) and [{Pd(dmba)(ONO(2))}(2)(mu-pz)] center dot H(2)O (3), respectively. These compounds were characterized by elemental analysis, IR and NMR spectroscopy. The IR spectra of (2-3) display typical bands of monodentade O-bonded nitrate groups, whereas the NMR data of 3 are consistent with the presence of bridging pyrazine ligands. The structure of compound 3 was determined by Xray diffraction analysis. This packing consists of a supramolecular chain formed by hydrogen bonding between the water molecule and nitrato ligands of two consecutive [Pd(2)(dmba)(2)(ONO(2))2(mu-pz)] units. (c) 2008 Elsevier Ltd. All rights reserved.

Cationic and neutral phenylmercury(II) complexes with heterocyclic thione ligands. X-ray structures of [HgPh(dmpymtH)][BF(4)] center dot H(2)O and [{HgPh}(2)(mu-dtu)]

The neutral complex [HgPh(dmpymt)] 1 (dmpymtH = 4,6-dimethylpyrimidine-2(1H)-thione) reacts with HBF(4) to give the cationic complex [HgPh(dmpymtH)][BF(4)] 2. The X-ray molecular structure of the later revealed a [2+1] coordination sphere about the mercury(II) atom (C-Hg-S and Hg center dot center dot center dot N). In the dinuclear complex [(HgPh)(2)(mu-dtu)] 3 [dtuH(2) = 2,4(1H,3H)-pyrimidinedithione or dithiouracil] the coordination spheres are also [2+1] although dissimilar regarding the Hg center dot center dot center dot N secondary bonds. NMR spectroscopy ((1)H, (13)C and (199)Hg) studies were undertaken in solution and the results discussed in the light of the X-ray structures. (C) 2008 Elsevier B. V. All rights reserved.

Graduate School and University Center Archives Finding Aid - Record Group VIII: Doctoral Students' Council

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Graduate School and University Center Archives Finding Aid - Record Group VII: CUNY

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Graduate School and University Center Archives Finding Aid - Record Group VI: Vice-President for Finance and Administration

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Graduate School and University Center Archives Finding Aid - Record Group V-D: Presidents' Files: Kelly

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Graduate School and University Center Archives Finding Aid - Record Group V-C: Presidents' Files: Horowitz

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Graduate School and University Center Archives Finding Aid - Record Group V-B: Presidents' Files: Proshansky

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Graduate School and University Center Archives Finding Aid - Record Group V-A: Presidents' Files: Rees

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Graduate School and University Center Archives Finding Aid - Record Group V: Presidents' Files

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Graduate School and University Center Archives Finding Aid - Record Group IV: Committee Records

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Graduate School and University Center Archives Finding Aid - Record Group III: Periodicals

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Graduate School and University Center Archives Finding Aid - Record Group II: Centers and Institutes

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Graduate School and University Center Archives Finding Aid - Record Group I: Subjects

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Center for the Study of Free Reed Instruments Collection, 1947-2011 Finding Aid

The Center for the Study of Free-Reed Instruments Collection is an archival collection at the City University of New York Graduate Center’s Mina Rees Library which contains materials donated by Professor Allan W. Atlas, related to free-reed instruments and the International Concertina Association.