Zobrazeno 1 - 10
of 95
pro vyhledávání: '"Keon Sang Ryoo"'
Autor:
Keon Sang Ryoo
Publikováno v:
대한환경공학회지, Vol 46, Iss 8, Pp 409-419 (2024)
Objectives This study is to compare the removal efficiency of cesium ions in aqueous solutions by natural and acid-activated kaolinite clay. Methods Natural kaolinite clay was acid-treated with H2SO4 (2M) at 80oC for 6 h under mechanical stirring. Wh
Externí odkaz:
https://doaj.org/article/6d1c95e9cab744049bcc71114c0df575
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 77, Iss 6, Pp 677-680 (2021)
The crystal structure of the new double CuII complex salt, [Cu(L)(H2O)2][Cu(L)]Br4·2H2O (L = 3,14-diethyl-2,6,13,17-tetraazatricyclo[16.4.0.07,12]docosane, C22H44N4) has been determined using synchrotron radiation. The asymmetric unit contains one h
Externí odkaz:
https://doaj.org/article/f5ec9cf1b9804b85b5ca1864e7ac3627
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 75, Iss 6, Pp 921-924 (2019)
The crystal structure of title salt, C22H46N42+·2NO3−·2H2O, has been determined using synchrotron radiation at 220 K. The structure determination reveals that protonation has occurred at diagonally opposite amine N atoms. The asymmetric unit cont
Externí odkaz:
https://doaj.org/article/22ebe4297e734d61823af2afc2280778
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 74, Iss 3, Pp 278-281 (2018)
The asymmetric unit of the title compound, Ag[Cr(C11H14N2O8)]·3H2O, contains one [Cr(1,3-pdta)]− anion [1,3-pdta is (propane-1,3-diyldinitrilo)tetraacetate], one Ag+ cation and three water molecules. The Cr3+ ion is coordinated to the four O and t
Externí odkaz:
https://doaj.org/article/d8ac865d6eb14cf08a4f943d6c31438d
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 72, Iss 9, Pp 1293-1296 (2016)
The structure of the title compound, [CrCl2(tn)2]2[Cr2O7] (tn = propane-1,3-diamine; C3H10N2), has been determined from synchrotron data. The asymmetric unit contains one CrIII complex cation and half a [Cr2O7]2− anion. In the complex cation, the C
Externí odkaz:
https://doaj.org/article/5b87eaa3d6414e258eb93c38abce6aa6
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 71, Iss 5, Pp 540-543 (2015)
The structure of the title compound, [Cr(NCS)2(cyclam)]2[ZnCl4] (cyclam = 1,4,8,11-tetraazacyclotetradecane, C10H24N4), has been determined from synchrotron data. The asymmetric unit contains two independent halves of the CrIII complex cations and ha
Externí odkaz:
https://doaj.org/article/c410b30861264ef3b8d921e963d62b7e
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 72, Iss 3, Pp 280-282 (2016)
The structure of the title salt, [CrCl(C10H8N2)2(H2O)][ZnCl4], has been determined from synchrotron data. The CrIII ion is coordinated by four N atoms from two 2,2′-bipyridine (bipy) ligands, one O atom from a water molecule and a chloride anion in
Externí odkaz:
https://doaj.org/article/9e9672447a2e42b8bec91d9bba65ac0f
Publikováno v:
Acta Crystallographica Section E, Vol 70, Iss 7, Pp m280-m280 (2014)
The title salt, Na[CrF2(C5H5N)4]2[ZnCl4]ClO4, consists of two cationic CrIII complexes, an Na+ cation, one [ZnCl4]2− anion and one ClO4− anion. The CrIII atoms are coordinated by four pyridine (py) N atoms and two F atoms in a trans arrangement,
Externí odkaz:
https://doaj.org/article/e2682b07642a4481a67c11ebd5803585
Publikováno v:
Acta Crystallographica Section E, Vol 69, Iss 7, Pp m376-m377 (2013)
The crystal structure of [Cr(NCS)2(cyclam)]NCS (cyclam = 1,4,8,11-tetraazacyclotetradecane, C10H24N4) has been determined by using synchrotron radiation at 98 K. The CrIII atom is in a slightly distorted octahedral environment with four N atoms of th
Externí odkaz:
https://doaj.org/article/c03e0ea9222f4e509a88716b63588320
Publikováno v:
Acta Crystallographica Section E, Vol 68, Iss 1, Pp o102-o102 (2012)
In the title co-crystal, C20H40N4·2C11H10O, the macrocycle is generated by a crystallographic inversion centre. The N atoms show a pyramidal coordination, and the cyclohexane ring that is fused to the 14-membered C10N4 ring exists in a chair conform
Externí odkaz:
https://doaj.org/article/e5405ac727254d428898bb3e8be0fdbe