A square-shaped complex with an electron-acceptor ligand: unique cubic crystal symmetry and similarity to inorganic mineral katoite

CrystEngComm ◽  
2021 ◽  
Author(s):  
Kentaro Aoki ◽  
Kazuya Otsubo ◽  
Hiroshi Kitagawa
Keyword(s):  
Molecular Recognition ◽  
Electron Acceptor ◽  
Macrocyclic Complex ◽  
Macrocyclic Complexes ◽  
Crystal Symmetry ◽  
Cubic Crystal ◽  
Unique Structure ◽  
Inorganic Mineral ◽  
Significant Attention ◽  
Recognition Property

Square macrocyclic complexes have attracted significant attention due to their unique structure and molecular recognition property. Here we report a square macrocyclic complex using an electron-acceptor ligand N,N’-di(4-pyridyl)-1,4,5,8-naphthalenediimide (dpndi), [Pt(en)(dpndi)]4(SO4)4·20H2O...

scholarly journals Naturally Occurring Isocoumarins Derivatives from Endophytic Fungi: Sources, Isolation, Structural Characterization, Biosynthesis, and Biological Activities

Molecules ◽  
2020 ◽  
Vol 25 (2) ◽  
pp. 395 ◽  
Author(s):  
Ahmad Omar Noor ◽  
Diena Mohammedallam Almasri ◽  
Alaa Abdullah Bagalagel ◽  
Hossam Mohamed Abdallah ◽  
Shaimaa Gamal Abdallah Mohamed ◽  
...  
Keyword(s):  
Endophytic Fungi ◽  
Structural Characterization ◽  
Biological Activities ◽  
Marine Organisms ◽  
Unique Structure ◽  
Naturally Occurring ◽  
Significant Attention

Recently, the metabolites separated from endophytes have attracted significant attention, as many of them have a unique structure and appealing pharmacological and biological potentials. Isocoumarins represent one of the most interesting classes of metabolites, which are coumarins isomers with a reversed lactone moiety. They are produced by plants, microbes, marine organisms, bacteria, insects, liverworts, and fungi and possessed a wide array of bioactivities. This review gives an overview of isocoumarins derivatives from endophytic fungi and their source, isolation, structural characterization, biosynthesis, and bioactivities, concentrating on the period from 2000 to 2019. Overall, 307 metabolites and more than 120 references are conferred. This is the first review on these multi-facetted metabolites from endophytic fungi.

Distinguishable Zn(ii) and Pb(ii) template effects on forming pendant-armed Schiff-base macrocyclic complexes including a remarkable Pb(ii)–π macrocyclic complex

2014 ◽  
Vol 43 (41) ◽  
pp. 15351-15358 ◽  
Author(s):  
Kun Zhang ◽  
Jiao Geng ◽  
Chao Jin ◽  
Wei Huang
Keyword(s):  
Schiff Base ◽  
Macrocyclic Complex ◽  
Macrocyclic Complexes ◽  
Ambient Conditions

36-Membered [2 + 2] dinuclear Zn(ii) and 18-membered [1 + 1] mononuclear Pb(ii) Schiff-base macrocyclic complexes have been described, including a unique intramolecular η3-coordinated Pb(ii)–π macrocyclic complex obtained under ambient conditions.

Non-cubic crystal symmetry of CaSiO3 perovskite up to 18 GPa and 1600 K

2009 ◽  
Vol 282 (1-4) ◽  
pp. 268-274 ◽  
Author(s):  
Takeyuki Uchida ◽  
Yanbin Wang ◽  
Norimasa Nishiyama ◽  
Ken-ichi Funakoshi ◽  
Hiroshi Kaneko ◽  
...  
Keyword(s):  
Crystal Symmetry ◽  
Cubic Crystal ◽  
Casio3 Perovskite

scholarly journals ODF Calculation by Series Expansion from Incompletely Measured Pole Figures Using the Positivity Condition Part I—Cubic Crystal Symmetry

1987 ◽  
Vol 7 (3) ◽  
pp. 171-185 ◽  
Author(s):  
M. Dahms ◽  
H. J. Bunge
Keyword(s):  
Series Expansion ◽  
Iterative Procedure ◽  
Orientation Distribution ◽  
Distribution Functions ◽  
Crystal Symmetry ◽  
Cubic Crystal ◽  
Positivity Condition ◽  
Pole Figures ◽  
Orientation Distribution Functions

The calculation of orientation distribution functions (ODF) from incomplete pole figures can be carried out by an iterative procedure taking into account the positivity condition for all pole figures. This method strongly reduces instabilities which may occasionally occur in other methods.

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