Landolt-Brnstein GROUP II: Molecules and Radicals VOLUME 24 Molecular Constants mostly from Microwave, Molecular Beam, and Sub-Doppler Laser Spectroscopy SUBVOLUME D2 Constants for Radicals, Part 2: Polyatomic Free Radicals Title Page, Preface, Authors, Table of Contents 
 Title Page
 Preface 
 Contributors 
1 Introduction (W. HTTNER) 1 
1.1 General remarks 1 
1.2 Review articles and tables 1 
1.3 Arrangement of tables, substances and parameters 1 
1.3.1 Arrangement of chapters and sections 1 
1.3.2 Arrangement within the sections of chapters 2 and 3 2 
1.3.3 Explanation of the columns of the tables in chapters 2 and 3 2 
1.3.4 Notation of experimental errors 3 
1.4 Selection of data 3 
1.5 Abbreviations used for experimental methods 3 
1.6 Selected fundamental constants and energy conversion factors 4 
1.8 References for 1 5 
3 Constants of radicals 6 
3.2 Polyatomic radicals (J.M BROWN) 6 
3.2.0 Introduction 6 
3.2.1 Linear polyatomic radicals 7 
3.2.1.1 Preliminary remarks 7 
3.2.1.2 Data 10 
3.2.1.2.1 C2H 10 
3.2.1.2.2 C3H 13 
3.2.1.2.3 C4H 20 
3.2.1.2.4 C5H 25 
3.2.1.2.5 C6H 28 
3.2.1.2.6 C7H 32 
3.2.1.2.7 C8H 35 
3.2.1.2.8 C9H 37 
3.2.1.2.9 C10H 39 
3.2.1.2.10 C11H 39 
3.2.1.2.11 C12H 41 
3.2.1.2.12 C13H 42 
3.2.1.2.13 C14H 43 
3.2.1.2.14 CCN 43 
3.2.1.2.15 CCCN 44 
3.2.1.2.16 C5N 48 
3.2.1.2.17 C2O 49 
3.2.1.2.18 C4O 50 
3.2.1.2.19 C6O 51 
3.2.1.2.20 C8O 52 
3.2.1.2.21 C2S 53 
3.2.1.2.22 C4S 56 
3.2.1.2.23 HCCN 57 
3.2.1.2.24 HC4N 71 
3.2.1.2.25 HC6N 75 
3.2.1.2.26 HCCP 79 
3.2.1.2.27 HC2S 84 
3.2.1.2.28 HC3S 96 
3.2.1.2.29 HC4S 101  
3.2.1.2.30 SiCN 103  
3.2.1.2.31 SiNC 104  
3.2.1.2.32 SiCCH 106  
3.2.1.2.33 NaCH 107  
3.2.1.2.34 KCH 109  
3.2.1.2.35 MgOH 111  
3.2.1.2.36 CaOH 122  
3.2.1.2.37 SrOH 128  
3.2.1.2.38 BaOH 134  
3.2.1.2.39 MgCN 140  
3.2.1.2.40 MgNC 142  
3.2.1.2.41 CaNC 149  
3.2.1.2.42 MgCCH 151  
3.2.1.2.43 CaCCH 155  
3.2.1.2.44 SrCCH 157  
3.2.1.2.45 ArOH 158  
3.2.1.2.46 ArSH 160  
3.2.1.2.47 FeCO 163  
3.2.2 Symmetric top free radicals 167  
3.2.2.1 Preliminary remarks 167  
3.2.2.2 Data 169  
3.2.2.2.1 SiF3 169
3.2.2.2.2 MgCH3 176  
3.2.2.2.3 CaCH3 179  
3.2.2.2.4 SrCH3 184  
3.2.2.2.5 BaCH3 188  
3.2.2.2.6 CaOCH3 194  
3.2.3 Non-linear triatomic radicals 196  
3.2.3.1 Preliminary remarks 196  
3.2.2.3 Data 204  
3.2.3.2.1 CH2 204  
3.2.3.2.2 NH2 206  
3.2.3.2.3 PH2 246  
3.2.3.2.4 AsH2 254  
3.2.3.2.5 H2O+ 261  
3.2.3.2.6 HCS 262  
3.2.3.2.7 HSC 263  
3.2.3.2.8 HSiO 270  
3.2.3.2.9 HSiS 274  
3.2.3.2.10 HO2 278  
3.2.3.2.11 HS2 285  
3.2.3.2.12 ClO2 296  
3.2.3.2.13 BrO2 323  
3.2.3.2.14 FS2 357  
3.2.3.2.15 ClS2 368  
3.2.3.2.16 CaSH 376  
3.2.3.2.17 YC2 380
3.2.4 Larger non-linear free radicals 381  
3.2.4.1 Preliminary remarks 381 
3.2.4.2 Data 382 
3.2.4.2.1 c-C3H 382 
3.2.4.2.2 CH2F 396 
3.2.4.2.3 CHF2 398 
3.2.4.2.4 CH2Cl 401 
3.2.4.2.5 CH2Br 402 
3.2.4.2.6 H2CN 403 
3.2.4.2.7 H2CP 408 
3.2.4.2.8 H2CCCH 418 
3.2.4.2.9 H2CC4H 420 
3.2.4.2.10 H2CCN 422 
3.2.4.2.11 H2CCCCN 429 
3.2.4.2.12 H2CCP 434 
3.2.4.2.13 H2NS 438 
3.2.4.2.14 H2PO 443 
3.2.4.2.15 HCCO 465 
3.2.4.2.16 HCCCO 466 
3.2.4.2.17 HC4O 483 
3.2.4.2.18 HOCO 486 
3.2.4.2.19 HNCN 491 
3.2.4.2.20 MgNH2 493 
3.2.4.2.21 CaNH2 496 
3.2.4.2.22 SrNH2 514 

