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Table 3 Thermal behavior and kinetic parameters determined using the Coats–Redfern (CR) and Horowitz–Metzger (HM) operated for L1, L2, L3 and their complexes

From: Spectral, thermal, antimicrobial studies for silver(I) complexes of pyrazolone derivatives

Compounds

Decompositi range(K)

Ts(K)

Method

Parameter

Ra

SDb

E* (kJ mol−1)

A (s−1)

ΔS* (J mol−1 K−1)

ΔH* (kJ mol−1)

ΔG* (kJ mol−1)

L1

673–905

817

CR

HM

95.656

116.813

69.368 × 103

30.233 × 103

− 432.844

− 425.910

88.863

110.020

442.497

457.988

0.970

0.984

0.187

0.065

[Ag(L1)2(H2O)2]NO3

373–573

462

CR

HM

34.379

38.825

3.390 × 102

2.621 × 103

− 393.344

− 410.348

30.537

34.983

212.262

224.564

0.984

0.970

0.116

0.087

L2

453–645

546

CR

HM

31.931

40.983

37.451

672.979

− 373.640

− 397.656

27.391

36.443

231.398

253.563

0.943

0.945

0.207

0.112

[Ag(L2)2(H2O)2]NO3.H2O

689–881

801

CR

HM

79.284

93.856

6.618 × 103

113.45 × 103

− 413.475

− 437.099

72.624

87.196

403.817

437.312

0.945

0.940

0.220

0.116

L3

438–630

564

CR

HM

35.317

48.603

1.185 × 102

2.847 × 103

− 382.948

− 409.379

30.627

43.913

246.610

274.803

0.960

0.952

0.182

0.106

[Ag(L3)2(H2O)2]NO3

365–685

497

CR

HM

15.316

22.370

0.758

0.119 × 102

− 342.002

− 364.917

11.183

18.237

181.158

199.601

0.981

0.985

0.089

0.054

  1. aCorrelation coefficients of the Arrhenius plots and bStandard deviation