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Polynuclear lanthanide (Ln) complexes of a tri-functional hydrazone ligand--mononuclear (Dy), dinuclear (Yb, Tm), tetranuclear (Gd), and hexanuclear (Gd, Dy, Tb) examples.

Dalton transactions (Cambridge, England : 2003)

Anwar MU, Dawe LN, Tandon SS, Bunge SD, Thompson LK.
PMID: 23552191
Dalton Trans. 2013 Jun 07;42(21):7781-94. doi: 10.1039/c3dt32732a.

The lanthanide coordination chemistry of a tri-functional vanillin-hydrazone-oxime ligand reveals a variety of different products, depending on reaction conditions, with mono-nuclear (Dy), dinuclear (Yb, Tm), tetranuclear (Gd) and hexanuclear (Gd, Tb, Dy) examples. The Ln6 (Ln = Gd, Dy,...

Ring-opening polymerization of rac-lactide mediated by tetrametallic lithium and sodium diamino-bis(phenolate) complexes.

Dalton transactions (Cambridge, England : 2003)

Alhashmialameer D, Ikpo N, Collins J, Dawe LN, Hattenhauer K, Kerton FM.
PMID: 26538475
Dalton Trans. 2015 Dec 14;44(46):20216-31. doi: 10.1039/c5dt03119b.

Lithium and sodium compounds supported by tetradentate amino-bis(phenolato) ligands, [Li2(N2O2(BuBuPip))] (1), [Na2(N2O2(BuBuPip))] (2) (where [N2O2(BuBuPip)] = 2,2'-N,N'-homopiperazinyl-bis(2-methylene-4,6-tert-butylphenol), and [Li2(N2O2(BuMePip))] (3), [Na2(N2O2(BuMePip))] (4) (where [N2O2(BuMePip)] = 2,2'-N,N'-homopiperazinyl-bis(2-methylene-4-methyl-6-tert-butylphenol) were synthesized and characterized by NMR spectroscopy and MALDI-TOF mass spectrometry. Variable temperature...

Are the Duocarmycin and CC-1065 DNA Alkylation Reactions Acid-Catalyzed? Solvolysis pH-Rate Profiles Suggest They Are Not.

The Journal of organic chemistry

Boger DL, Garbaccio RM.
PMID: 11674637
J Org Chem. 1999 Jul 23;64(15):5666-5669. doi: 10.1021/jo990762g.

A study of the solvolysis pH-rate profiles for two key reactive CC-1065/duocarmycin alkylation subunit analogues is detailed. Unlike the authentic alkylation subunits and N-BOC-CBI (4) which are too stable to establish complete solvolysis pH-rate profiles, the analogues N-BOC-CBQ (5)...

CC-1065 and the Duocarmycins: Synthetic Studies.

Chemical reviews

Boger DL, Boyce CW, Garbaccio RM, Goldberg JA.
PMID: 11848889
Chem Rev. 1997 May 08;97(3):787-828. doi: 10.1021/cr960095g.

No abstract available.

Comparative diversity and composition of cyanobacteria in three predominant soil crusts of the Colorado Plateau.

FEMS microbiology ecology

Redfield E, Barns SM, Belnap J, Daane LL, Kuske CR.
PMID: 19709211
FEMS Microbiol Ecol. 2002 Apr 01;40(1):55-63. doi: 10.1111/j.1574-6941.2002.tb00936.x.

Terminal restriction fragment length polymorphism (TRF or T-RFLP) analysis and 16S rDNA sequence analysis from clone libraries were used to examine cyanobacterial diversity in three types of predominant soil crusts in an arid grassland. Total DNA was extracted from...

A self-assembled, magnetically coupled square Cu16 4x[2x2] grid.

Angewandte Chemie (International ed. in English)

Dawe LN, Thompson LK.
PMID: 17702078
Angew Chem Int Ed Engl. 2007;46(39):7440-4. doi: 10.1002/anie.200701840.

No abstract available.

Ligand directed self-assembly of polymetallic [n x n] grids: rational routes to large functional molecular subunits?.

Dalton transactions (Cambridge, England : 2003)

Dawe LN, Abedin TS, Thompson LK.
PMID: 18354761
Dalton Trans. 2008 Apr 07;(13):1661-75. doi: 10.1039/b716114j. Epub 2007 Dec 17.

Poly-(n)-topic ligands with a linear arrangement of coordination pockets self-assemble, generally in high yield, to produce square [n x n] grid complexes. Oligomeric, non-grid intermediates, identified by structural studies, have shown alternative construction pathways, but have also indicated possible...

Supramolecular 'flat' Mn9 grid complexes--towards functional molecular platforms.

Dalton transactions (Cambridge, England : 2003)

Milway VA, Abedin SM, Niel V, Kelly TL, Dawe LN, Dey SK, Thompson DW, Miller DO, Alam MS, Müller P, Thompson LK.
PMID: 16751892
Dalton Trans. 2006 Jun 21;(23):2835-51. doi: 10.1039/b515801j. Epub 2006 May 12.

Flat, quantum dot like arrays of closely spaced, electron rich metal centres are seen as attractive subunits for device capability at the molecular level. Mn(II)9 grids, formed by self-assembly processes using 'tritopic' pyridine-2,6-dihydrazone ligands, provide easy and pre-programmable routes...

Coordination "oligomers" in self-assembly reactions of some "tritopic" picolinic dihydrazone ligands-mononuclear, dinuclear, hexanuclear, heptanuclear, and nonanuclear examples.

Inorganic chemistry

Niel V, Milway VA, Dawe LN, Grove H, Tandon SS, Abedin TS, Kelly TL, Spencer EC, Howard JA, Collins JL, Miller DO, Thompson LK.
PMID: 18076158
Inorg Chem. 2008 Jan 07;47(1):176-89. doi: 10.1021/ic7016787. Epub 2007 Dec 13.

"Tritopic" picolinic dihydrazone ligands with tridentate coordination pockets are designed to produce homoleptic [3 x 3] nonanuclear square grid complexes on reaction with transition-metal salts, and many structurally documented examples have been obtained with Mn(II), Cu(II), and Zn(II) ions....

Synthesis and clathrates of oligomeric 2-O-naphthoide macrocycles.

The Journal of organic chemistry

AlHujran TA, Dawe LN, Collins J, Georghiou PE.
PMID: 21229978
J Org Chem. 2011 Feb 04;76(3):971-3. doi: 10.1021/jo101959w. Epub 2011 Jan 13.

New macrocyclic O-naphthoides 4-6 were synthesized from dehydration reactions of 3-hydroxy- and 7-tert-butyl-3-hydroxy-2-naphthoic acids, respectively. Their X-ray structures were determined and their clathrate inclusion properties were investigated. Hexamer 6 formed an inclusion clathrate with four chloroform molecules. The trimer...

Supramolecular self-assembled polynuclear complexes from tritopic, tetratopic, and pentatopic ligands: structural, magnetic and surface studies.

Inorganic chemistry

Dey SK, Abedin TS, Dawe LN, Tandon SS, Collins JL, Thompson LK, Postnikov AV, Alam MS, Müller P.
PMID: 17696336
Inorg Chem. 2007 Sep 17;46(19):7767-81. doi: 10.1021/ic070336a. Epub 2007 Aug 14.

Polymetallic, highly organized molecular architectures can be created by "bottom-up" self-assembly methods using ligands with appropriately programmed coordination information. Ligands based on 2,6-picolyldihydrazone (tritopic and pentatopic) and 3,6-pyridazinedihydrazone (tetratopic) cores, with tridentate coordination pockets, are highly specific and lead...

The psychokinetic effect; further A.S.P.R. experiments.

The Journal of the American Society for Psychical Research

DALE LA, WOODRUFF JL.
PMID: 20295555
J Am Soc Psych Res. 1947 Apr;41(2):65-82.

No abstract available.

Showing 1 to 12 of 180 entries