The relationship between the structures of Cu(II) complexes and their chemical transformations

Langfelderová, H.; Linkešová, M.; Jóna, E.

doi:10.1007/bf01928437

Cited by 7 publications

(1 citation statement)

References 11 publications

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“…Nonisothermal TG curves were used to obtain E* and AS* for the dehydration of CuS04-5H20, CuS04-3H20, and CuS-04-H20 (126). The values of E* and AS* for the dehydration of CuS04-3H20 were found to be little affected by the mode of preparation of this compound.…”

Section: Differential Thermal Analysis and Differential Scanning Calo...mentioning

confidence: 99%

Thermal analysis

Wendlandt¹

1982

Anal. Chem.

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after 22 years of editing this review (160), has decided to turn the job over to another author. It is with a deep sense of responsibility and dedication that I hereby accept this challenge. The workers in the field of thermal analysis, as well as myself, should be eternally grateful to Dr. Murphy for his devoted and accurate reporting of thermal analysis activities as they occurred through the years. I only hope that I can continue this tradition in the manner and spirit that he did.As usual, this review covers the almost 2-year period from January 1980 through November 1981. Unfortunately, not all of the thermal analysis papers can be described here, due to their magnitude. An attempt has been made, however, to include representative studies in all of the thermal analysis areas as well as, in my judgement, new and novel ideas and developments. Due to space limitations, very few review articles (of which there are many), books, and meetings are included here.

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Section: Differential Thermal Analysis and Differential Scanning Calo...mentioning

confidence: 99%

Thermal analysis

Wendlandt¹

1982

Anal. Chem.

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On the relationship between the structures of Cu(II) complexes and their chemical transformations

Langfelderová

Karla

Lirkešová

et al. 1983

Journal of Thermal Analysis

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The experimental activation energies (E •) of dehydration of Cu(NH3)4(H20)SO 4, Cu(en)2(H20)X 2 (X = CI-, Br-), Cu(en)(H20)2SO 4, Cu(pY)2(H20)2SO4, CuCI2 9 2 H20 and M~CuCI 4 9 2 H20 (M ]-= NH 4, K, Rb) were obtained from their non-isothermal thermogravimetric curves using the Coats-Redfern method. These E ~ values were compared with known data on the structures of the Cu(ll) coordination polyhedra in the above complexes. No dependence of the E ~ values was found on either the central atom -released ligand bond length, or the number and lengths of the hydrogen bonds formed by the released water molecules. However, it was found that it is justified to seek some relationship between the E ~ values and the anisotropic temperature factors of the donor atoms of the ligands split off. Cu(NHa)4(H20)SO 4, Cu(aAa)2(H=O)X 2 c X = CI-vl Br-, CU(aAa)2(H20)2SO4, Cu(nHp.) 2(H 20)2SO4,CuCt~ 9 2 H2OHM~CuCI 4 9 2 H=O, rAeM I = NH4,K, Rb--6bmHonpe-AeneHbl H3 HeH3oTepMHqeCKVIX TepMoFpaBHMeTpHqeCKHX KpHBblX, HcnoRb3yR MaTO~I. KoyTca--PaA~epHa. nonyqaHHble 3HaHeHHR E + 6blJ'lH conoCTaBneHbl C H3BeCTHblMH AaHHblMH O cTpyKType Cu(II) KOOpAHHal/HOHHOrO nonHaApa B BblLUeyrlOMRHyTblX KOMnneKCaX. He 6blTla Ha~AeHa 3aBHCHMOCTb Me>KAy E + H AnHHOI~I CBR3VI I/eHTpagbHbl~l aTOM --BblAeRRIOU/HHCR NHFaHA, HH Me>KAy qHCEIOM H ATIIAHO~I BOJ~OpO~HblX CBR3eH, oSpa3OBaHHblMH BblAeRRIOLU, HMHCR MOJleKyJlaMH BO/~bl. OAHaKO, 6blYlO Ha~IAeHO, NTO oRpaBAaHHblM RBJqReTCR rlOHCK HeKOTOpO~I B3aHMOCBR3HMe>KAy 3HaHeHHeM E + H aHH3OTpOnHblMH TeMnepaTypHblMH Ci0aKTOpaMH AOHOpHblX aTOMOB NHFaH~OB.

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