Browsing by Author "Morsali, Ali"

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    2D holodirected lead(II) bromide coordination polymers constructed of rigid and flexible ligands
    (Elsevier Science, 2009-04-01) Aslani, Alireza; Morsali, Ali; Büyükgüngör, Orhan; Yılmaz, Veysel Turan; Uludağ Üniversitesi/Fen-Edebiyat Fakültesi/Kimya Anabilim Dalı.; 0000-0002-2849-3332; L-7238-2018; 7006269202
    Three new 2D Pb-II coordination polymers containing 4,4'-bipyridine (4,4'-bipy), 1,2-bis(4-pyridyl)ethane (bpa) and 1,2-bis(4-pyridyl) ethene (bpe) with bromide anions, [Pb(mu-4,4'-bipy)(mu-Br)(2)](n) (1), [Pb(mu-bpa)(mu-Br)(2)](n) (2) and [Pb(mu-bpe)(mu-Br)(2)](n) ( 3) have been synthesized and characterized by elemental analysis, IR spectroscopy and their structures studied by X-ray crystallography. The thermal stability of compounds 1-3 was studied by thermal gravimetric (TG) and differential thermal analyses ( DTA). The single-crystal X-ray data shows that the Pb2+-ions have coordination numbers of six and contain the rarely holodirected geometries.
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    Holodirected coordination sphere around lead(II) in three-dimensional polymeric structure; New precursor for preparation of lead oxide sulfate nano-structures
    (Elsevier, 2014-09-25) Akhbari, Kamran; Beheshti, Saeideh; Morsali, Ali; Büyükgüngör, Orhan; Yılmaz, Veysel Turan; Uludağ Üniversitesi/Fen-Edebiyat Fakültesi/Kimya Bölümü.; 0000-0002-2849-3332; L-7238-2018; 7006269202
    A new lead(II) three-dimensional coordination polymer, [Pb-2(mu(3)-ANS)(2)(mu(2)-Cl)(2)(H2O)(2)](n) (1) [ANS(-) = 4-amino-1 -naphthalenesulfonateb has been synthesized and characterized. The single-crystal X-ray data of compound 1 shows only one type of Pb-II ion with coordination number of six, the lead atom has distorted octahedral coordination sphere containing stereo-chemically inactive electron lone pair. The thermal stability of 1 was studied by TG-DTA (Thermo gravimetric and differential thermal analyses). Regular morphology of Pb-2(SO4)O nano-particle was prepared from fine powders of compound 1 by calcination process at 700 degrees C. This nano-structure was characterized by XRD (X-ray powder diffraction) and SEM (Scanning electron microscopy).
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    Hydrothermal and sonochemical synthesis of a nano-sized 2D lead(II) coordination polymer: A precursor for nano-structured PbO and PbBr2
    (Elsevier, 2009-07-16) Aslani, Alireza; Morsali, Ali; Kazak, Canan; Yılmaz, Veysel Turan; Uludağ Üniversitesi/Fen-Edebiyat Fakültesi/Kimya Bölümü.; 0000-0002-2849-3332; L-7238-2018; 7006269202
    A new nano-structured lead(II) coordination polymer, [Pb(mu-bpp)(mu-Br)(2)](n) (PBB) [bpp = 1,3-di(4-pyridyl)propane], has been synthesized by the reaction of a mixture lead(II) acetate and KBr with bpp by both hydrothermal and sonochemical methods. Reaction conditions, such as temperature, time, concentration and initial reagents play important roles in the size, morphology and crystal growth of the final products. The nano-sized PbBr2 and PbO were prepared from the calcination of the nano-structured PBB at vacuum and air atmosphere. The structure of PBB was determined by X-ray crystallography, while nano-structural materials were characterized by X-ray powder diffraction (XRPD) and scanning electron microscopy (SEM). Thermal stability of bulk and nano-sized particles of PBB was studied and compared with each other.
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    Sonochemical syntheses and characterization of a new nano-sized 2-D lead(II) coordination polymer as precursor for preparation of PbBr(OH) nano-structure
    (Taylor & Francis, 2010) Sadeghzadeh, Homa; Morsali, Ali; Büyükgüngör, Orhan; Yılmaz, Veysel Turan; Uludağ Üniversitesi/Fen-Edebiyat Fakültesi/Kimya Bölümü.; 0000-0002-2849-3332; L-7238-2018; 7006269202
    Nano-particles of a new 2-D Pb(II) coordination polymer, [Pb(4-pyc)(Br)(H2O)]n (1) (4-Hpyc = 4-pyridinecarboxylic acid), were synthesized by a sonochemical method. Crystal structure of 1 was determined by X-ray crystallography. The nano-particles were characterized by scanning electron microscopy, X-ray powder diffraction, IR spectroscopy, and elemental analyses. PbBr(OH) nano-structure was obtained by the calcination of nano-particles of 1 at 400 degrees C.
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    Sonochemical syntheses of strawberry-like nano-structure mixed-ligand lead(II) coordination polymer: Thermal, structural and X-ray powder diffraction studies
    (Elsevier, 2010-03-22) Sadeghzadeh, Homa; Morsali, Ali; Büyükgüngör, Orhan; Yılmaz, Veysel Turan; Uludağ Üniversitesi/Fen-Edebiyat Fakültesi/Kimya Bölümü.; 0000-0002-2849-3332; L-7238-2018; 7006269202
    Nano-structure of a new Pb(II) two-dimensional coordination polymer, {[Pb(2-pyc)(N-3)(H2O)]n (1), 2-Hpyc = 2-pyridinecarboxylic acid} was synthesized by a sonochemical method. The new nano-structure was characterized by scanning electron microscopy, X-ray powder diffraction, IR spectroscopy and elemental analyses. Compound 1 was structurally characterized by single crystal X-ray diffraction and consists of two-dimensional polymeric units. The thermal stability of compound 1 was studied by thermal gravimetric and differential thermal analyses and compared. PbO nano-powder was obtained by calcination of the nano-structure of compound 1 at 400 degrees C. This study demonstrates the coordination polymers may be suitable precursors for the preparation of nano-scale materials and dependent on their packing they may produce different and interesting morphologies.
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    Sonochemical syntheses of two nano-sized lead(II) metal-organic frameworks; application for catalysis and preparation of lead(II) oxide nanoparticles
    (Elsevier, 2014-05-11) Hashemi, Lida; Morsali, Ali; Büyükgüngör, Orhan; Khavasi, Hamid Reza; Ashouri, Fatemeh; Bagherzadeh, Mojtaba; Yılmaz, Veysel Turan; Uludağ Üniversitesi/Fen Edebiyat Fakültesi/Kimya Bölümü.; 0000-0002-2849-3332; L-7238-2018; 7006269202
    Nanostructures of the porous three-dimensional coordination polymers, [Pb(4-bpdh)(NO3)(H(2)0)](n) (HWITI-1), and [Pb(4-bpdh)(NO3)](n). (HMTI-2), {4-bpdh = 2,5-bis(4-pyridy1)-3,4-diaza-2,4-hexadiene}, have been synthesized by a sonochemical process at different concentrations and characterized by scanning electron microscopy, X-ray powder diffraction, IR spectroscopy and elemental analyses. Lead(11) oxide nanoparticles were prepared from thermal decomposition in oleic acid and direct calcination of compounds HIVITI-11 and H1VM-2 at different temperatures. The results of this study indicated that the size of the coordination polymer precursor and temperature correlates to the particle size of the formed lead(II) oxide nanoparticles. Also results show that a decrease in the particles size of compounds leads to a decrease in the particles size of the Pb0. In other hand decrease in size of compounds lead to increase in catalysis activity too. (C) 2014 Elsevier B.V. All rights reserved.
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    Sonochemical synthesis of nano-scale mixed-ligands lead(II) coordination polymers as precursors for preparation of PbO and PbBr(OH) nano-structures: thermal, structural and X-ray powder diffraction studies
    (Elsevier, 2010-03) Sadeghzadeh, Homa; Morsali, Ali; Büyükgüngör, Orhan; Yılmaz, Veysel Turan; Uludağ Üniversitesi/Fen-Edebiyat Fakültesi/Kimya Bölümü.; 0000-0002-2849-3332; L-7238-2018; 7006269202
    Nano-structures of two new lead(II) two-dimensional coordination polymers, [Pb-2(2-pyc)(2)(I)(2)](n) (1) and [Pb-2(2-pyc)(2)(Br)(2)](n) (2), {2-Hpyc = 2-pyridinecarboxilic acid} were synthesized by a sonochemical method that produce the coordination polymers at nano-size. The new nano-structures were characterized by scanning electron microscopy, X-ray powder diffraction, IR spectroscopy and elemental analyses. Compounds 1 and 2 were structurally characterized by single crystal X-ray diffraction and consist of two-dimensional polymeric units. The thermal stability of compounds 1 and 2 were studied by thermal gravimetric and differential thermal analyses. PbO and PbBr(OH) nano-structures were obtained by calcination of the nano-structures of compounds 1 and 2 at 400 degrees C, respectively. (c) 2009 Elsevier B.V. All rights reserved.
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    Synthesis of PbO nano-particles from a new one-dimensional lead(II) coordination polymer precursor
    (Elsevier, 2010-04-15) Sadeghzadeh, Homa; Morsali, Ali; Büyükgüngör, Orhan; Yılmaz, Veysel Turan; Uludağ Üniversitesi/Fen-Edebiyat Fakültesi/Kimya Bölümü.; 0000-0002-2849-3332; L-7238-2018; 7006269202
    A new Pb(II) one-dimensional coordination polymer, [Pb(mu-NO2)(mu-pyc)(H2O)](n) (1). Hpyc = 2-pyridine-carboxylic acid] was prepared and characterized by elemental analyses, powder XRD diffraction and IR spectroscopy. Compound 1 was structurally characterized by single-crystal X-ray diffraction and one-dimensional coordination polymer with coordination environment of PbNO6. The thermal stability of compound 1 showed that compound 1 decomposes at 110-500 degrees C and the final product is PbO. This polymeric precursor has been used to make PbO nano-particles using two different surfactants. The new nano-structure was characterized by scanning electron microscopy and X-ray powder diffraction. This study demonstrates that the coordination polymers may be suitable precursors for the preparation of nanoscale materials.