Group 1 diatomic KX bond enthalpies | KX bond | Enthalpy [/ kJ mol-1] |
|---|
| KH | 174.576 |
|---|
| KLi | 82 ±4.2 |
|---|
| KNa | 65.994 ±0.008 |
|---|
| KK | 54.63 ±0.02 |
|---|
| KRb | |
|---|
| KCs | |
|---|
| | KFr | |
|---|
Group 2 diatomic KX bond enthalpies | KX bond | Enthalpy [/ kJ mol-1] |
|---|
| KBe | |
|---|
| KMg | |
|---|
| KCa | |
|---|
| KSr | |
|---|
| KBa | |
|---|
| | KRa | |
|---|
Group 13 diatomic KX bond enthalpies | KX bond | Enthalpy [/ kJ mol-1] |
|---|
| KB | |
|---|
| KAl | |
|---|
| KGa | |
|---|
| KIn | |
|---|
| KTl | |
|---|
Group 14 diatomic KX bond enthalpies | KX bond | Enthalpy [/ kJ mol-1] |
|---|
| KC | |
|---|
| KSi | |
|---|
| KGe | |
|---|
| KSn | |
|---|
| KPb | |
|---|
Group 15 diatomic KX bond enthalpies | KX bond | Enthalpy [/ kJ mol-1] |
|---|
| KN | |
|---|
| KP | |
|---|
| KAs | |
|---|
| KSb | |
|---|
| KBi | |
|---|
Group 16 diatomic KX bond enthalpies | KX bond | Enthalpy [/ kJ mol-1] |
|---|
| KO | 277.8 ±20.9 |
|---|
| KS | |
|---|
| KSe | |
|---|
| KTe | |
|---|
| | KPo | |
|---|
Group 17 diatomic KX bond enthalpies | KX bond | Enthalpy [/ kJ mol-1] |
|---|
| KF | 497.5 ±2.5 |
|---|
| KCl | 433.0 ±8 |
|---|
| KBr | 379.9 ±0.8 |
|---|
| KI | 325.1 ±0.8 |
|---|
| | KFr | |
|---|
Group 18 diatomic KX bond enthalpies | KX bond | Enthalpy [/ kJ mol-1] |
|---|
| KHe | |
|---|
| | KNe | |
|---|
| KAr | 4.2 |
|---|
| KKr | 4.6 |
|---|
| KXe | 5.0 |
|---|
| | KRn | |
|---|
I am grateful to Professor J.A. Kerr (University of Birmingham, UK) for the provision of the bond strengths of diatomic molecules data. The values given here are at 298 K. All values are quoted in kJ mol-1. Generally, these data were obtained by spectroscopic or mass spectrometric means. You should consult reference 1 for further details. A note of caution: the strength of, say, the C-H bond in the gaseous diatomic species CH (not an isolable species) is not necessarily, the same as the strength of a C-H bond in, say, methane. The strongest bond for a diatomic species is that of carbon monoxide, CO (1076.5 ± 0.4 kJ mol-1). The strongest bond for a homonuclear diatomic species is that of dinitrogen, N2 (945.33 ± 0.59 kJ mol-1). |
|
